एपीए उद्धरण

Kleinfield., S. (1981). The biggest company on earth: A profile of AT&T. New York: Holt, Rinehart, and Winston.

शिकागो स्टाइल उद्धरण

Kleinfield., Sonny. The Biggest Company On Earth: A Profile of AT&T. New York: Holt, Rinehart, and Winston, 1981.

एमएलए उद्धरण

Kleinfield., Sonny. The Biggest Company On Earth: A Profile of AT&T. New York: Holt, Rinehart, and Winston, 1981.