How to add citations

From The Peopling of New York City

Contents

Quick Start

1) First, tell the reader where to look for the footnotes by editing the page and placing a heading at the bottom of the page that says something like ==notes== or ==citations==, etc. (the equal signs are what makes it a heading, you recall)

2) Beneath that heading, place a marker that tells the wiki where to place the footnotes. You can do this by typing the following on the line below the notes heading: <references/>

3) Finally, just after your sentence, enclose your full citation within <ref> and </ref> tags, so it looks like this:

According to scientists, Queens College is pretty cool.<ref>M. Ali, (New York: Academic Press, 2008), 110-112.</ref>

The wiki will do the rest.

Detailed Instructions

The basic concept of the <ref> tag is that it inserts the text enclosed by the ref tags as a footnote in a designated section, which you indicate with the placeholder tag <references />. The new format cannot be used interchangeably with the old format - you must pick one or the other.

If you forget to include <references /> at the end of the article, none of the footnotes will appear.

This page itself uses footnotes, such as the one at the end of this sentence.[1] If you view the source of this page by clicking "Edit this page", you can see a working example of footnotes.

Example

According to scientists, the Sun is pretty big.<ref>E. Miller, The Sun, (New York: Academic Press, 2005), 23-5.</ref>
The Moon, however, is not so big.<ref>R. Smith, "Size of the Moon", Scientific American, 46 (April 1978): 44-6.</ref>

==Notes==
<references/>

Multiple uses of the same footnote

To give a footnote a unique identifier, use <ref name="name">. You can then refer to the same footnote again by using a ref tag with the same name. The text inside the second tag doesn't matter, because the text already exists in the first reference. You can either copy the whole footnote, or you can use a terminated empty ref tag that looks like this: <ref name="name" />.

In the following example, the same source is cited three times.

This is an example of multiple references to the same footnote.<ref name="multiple">Remember that when you refer to the same footnote multiple times, the text from the first reference is used.</ref>

Such references are particularly useful when citing sources, if different statements come from the same source.<ref name="multiple">This text is superfluous, and won't show up anywhere. We may as well just use an empty tag.</ref>

A concise way to make multiple references is to use empty ref tags, which have a slash at the end. Although this may reduce redundant work, please be aware that if a future editor removes the first reference, this will result in the loss of all references using the empty ref tags.<ref name="multiple" />

==Notes==
<references/>

The text above gives the following result in the article (see also section below):

This is an example of multiple references to the same footnote.[2]

Such references are particularly useful when citing sources, when different statements come from the same source.[2]

A concise way to make multiple references is to use empty ref tags, which have a slash at the end. Although this may reduce redundant work, please be aware that if a future editor removes the first reference, this will result in the loss of all references using the empty ref tags.[2]

<references />

Placing <references /> inserts the full text of all pending inline citations defined by <ref>, anywhere on the page. For example, based on the citations above, the code:

<references />

will yield:

  1. This footnote is used as an example in the "How to use" section.
  2. 2.0 2.1 2.2 Remember that when you refer to the same footnote multiple times, the text from the first reference is used.

In some language editions of Wikipedia, long reference lists may be placed using the template {{Reflist}}, which incorporates <references />. It provides an optional parameter to display the reference list in multiple columns. For instance, the English, Hindi and Interlingua Wikipedias use the css selector references-small to make the reference text smaller than normal text.

Grouped references

This is currently experimental and must be enabled by $wgAllowCiteGroups = true;. However, it is enabled on Wikipedia and is listed here for reference. Use with caution.

Example

According to scientists, the Sun is pretty big <ref>E. Miller, The Sun, (New York: Academic Press, 2005), 23-5.</ref>.
In fact, it is very big <ref group="footnotes">Take their word for it. Don't look directly at the sun!</ref>.

==Notes==
<references group="footnotes"/>
==References==
<references/>

The anonymous group works as before, while the named group reference will show up as [footnotes 1]. This may or may not be annoying.