APA aipamena

Sarnoff, D. (1968). Looking ahead. New York: McGraw- Hill Book Company.

Chicago Style aipamena

Sarnoff, David. Looking Ahead. New York: McGraw- Hill Book Company, 1968.

MLA aipamena

Sarnoff, David. Looking Ahead. New York: McGraw- Hill Book Company, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.