Help:References

References (refs) on a wiki are important to validate writing and inform the reader. Any editor can remove unreferenced material; and unsubstantiated articles may end up getting deleted, so when something such as a quote is added to an article, it's highly advisable to also include a reference to say from where it came from. Referencing may look daunting, but it's easy enough to do. Here's a guide to getting started.

Good References
A reference must be accurate, i.e. it must prove the statement in the text. To validate "the When Green Flag Clicked block is the most used block", it's no good linking to a page about blocks, if it does not say which is most used; nor to one on the When Green Flag Clicked block, if it does not say that it is most used. You have to link to a source that proves the statement is true. You must use reliable sources, generally a forum topic or an official info page.

Inserting References
To add references, first find the place in the edit window where you wish to add a citation generally at the end of a sentence, after the period  and select that location. Then click  in the edittools below the edit window. Insert the referenced text, generally a simple link to the source.

Additionally, to make two references refer to the same source, name one reference and repeat with another. This is some text related to cats.

This is some more text related to cats.

If the article did not have any visible references before you started, check to make sure that there is a references section. If not, add a new section titled "References" at the end of the article, before a see also/external links section, and before any templates/categorization, with the content of  which is where any references in the article will appear.

Profile Comments, Studio Comments and Forum Posts
References to a profile/studio comment or forum post should follow the following format: Username. (Date). "Relevant part of comment/post."  Example: ↑ ceebee. (31/3/2016). "They are non-binary." https://scratch.mit.edu/projects/103415695/#comments-57351742

Other sources
References to other possible sources (such as a project or an entire subforum) can just be a single link:  Example: ↑ https://scratch.mit.edu/discuss/11/

Test it Out
Open the edit box for the Sandbox (in a new tab), copy the following text (inserting your own text where indicated), paste it at the bottom of the page, and save the page:

Reference test
This is the text which you are going to verify with a reference.