APA (7e ed.) Bronvermelding

(1968). United States government correspondence manual. U.S. Government Printing Office.

Chicago (17e ed.) Bronvermelding

United States Government Correspondence Manual. Washington: U.S. Government Printing Office, 1968.

MLA (9e ed.) Bronvermelding

United States Government Correspondence Manual. U.S. Government Printing Office, 1968.

Let op: Deze citaties zijn niet altijd 100% accuraat.