The Uniform Resource Locator is used to locate documents and pages on the web.
The first part of the URL identifies the transfer protocol -- often HyperText Transfer Protocol (http://) or HyperText Transfer Protocol Secure (https://) -- which defines how messages are formatted and transmitted. It rarely needs to be specified in the URL any more.
The next section of the URL is the domain name, which indicates the owner of the page. SDSU's domain name is sdstate.edu. The .edu in the domain name indicates that it is an educational institution. There are many types of domains: .com, .org, .gov, etc.
The final part(s) of the URL are the path and file indicators. This indicates which folder and subfolders a particlar web page or document is located in so that it can be found and delivered to your browser.
Author. (Year). Web page title. Retrieved from URL.
You can add the date you viewed the webpage if you think the page will change frequently or soon.
Author. (Year). TItle of document. Retrieved from URL
Author. (Year, Month Day). Title [Web log message]. Retrieve from URL
Author, (Year, Month Day). Subject heading [Online forum comment]. Retrieved from URL
Author. (Role). (Year, Month Day). Title [Audio Podcast]. Retrieved from URL
Author. (Role). (Year). Title [item description]. Retrieved from URL
Producer. (Year). Title of video. Database. Retrieved from http://URL.
If an article, book or other resource does not have an identifiable author, move the title to the first element and keep everything else in the same place.
Title. Date. Place of Publication: Publisher.
Title. Place of Publication: Publisher. Date. Format.
Chicago Author-Date Book:
Title. Year. Place of Publication: Publisher.
If a publication does not have a date, use the abbreviation n.d. for no date.