Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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