With no arguments, {{Marine Corps}} produces:

 This article incorporates public domain material from websites or documents of the United States Marine Corps.

There are four parameters, article, url, author, accessdate. The article and url parameters should be used together. For example ---

{{Marine Corps|article = Patterns of Insurgency and Counterinsurgency |url = http://www.smallwars.quantico.usmc.mil/search/articles/lynn.pdf}} produces:

 This article incorporates public domain material from the United States Marine Corps document "Patterns of Insurgency and Counterinsurgency".

{{Marine Corps|article = Patterns of Insurgency and Counterinsurgency |url = http://www.smallwars.quantico.usmc.mil/search/articles/lynn.pdf |author=John A. Lynn}} produces:

 This article incorporates public domain material from the United States Marine Corps document "Patterns of Insurgency and Counterinsurgency" by John A. Lynn.

{{Marine Corps|article = Patterns of Insurgency and Counterinsurgency |url = http://www.smallwars.quantico.usmc.mil/search/articles/lynn.pdf |author=John A. Lynn |accessdate=2013-01-01}} produces:

 This article incorporates public domain material from the United States Marine Corps document "Patterns of Insurgency and Counterinsurgency" by John A. Lynn (retrieved on 2013-01-01).