एपीए उद्धरण

U.S. department of commerce. (1921). Survey of current business. U.S. department of commerce.

शिकागो स्टाइल उद्धरण

U.S. department of commerce. Survey of Current Business. Washington D.C: U.S. department of commerce, 1921.

एमएलए उद्धरण

U.S. department of commerce. Survey of Current Business. U.S. department of commerce, 1921.