APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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