Dyfyniad APA

United States. General Accounting Office. (1957). Policy and procedures manual for guidance of federal agencies. U.S. General Accounting Office.

Dyfyniad Arddull Chicago

United States. General Accounting Office. Policy and Procedures Manual for Guidance of Federal Agencies. Washington, D.C.: U.S. General Accounting Office, 1957.

Dyfyniad MLA

United States. General Accounting Office. Policy and Procedures Manual for Guidance of Federal Agencies. U.S. General Accounting Office, 1957.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.