APA (7th ed.) Citation

(1919). U.S.A., war-savings certificates and Treasury savings certificates, Series of 1920. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S.A., War-savings Certificates and Treasury Savings Certificates, Series of 1920. [Place of publication not identified]: U.S. Government Printing Office, 1919.

MLA (9th ed.) Citation

U.S.A., War-savings Certificates and Treasury Savings Certificates, Series of 1920. U.S. Government Printing Office, 1919.