APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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