Include:

* Author’s name (if available)

* Date of publication or update or date of retrieval, in parentheses

* Title or description of document

* Title of complete work (if relevant), in italics or underlined

* Other relevant information (volume number, page numbers, etc.)

* Retrieval date statement

* URL

For example:

Bryant, P. (1999). Biodiversity and Conservation Retrieved October 4, 1999, from http://darwin.bio.uci.edu/~sustain/bio65/Titlpage.htm

If you don’t have enough room to put the URL on one line, you can break it up, following these guidelines:

* After a slash

* Before a period