Cita APA (7th ed.)

Shultz, W. J. (1961). American marketing. Wadsworth Pub.

Cita Chicago (17th ed.)

Shultz, William John. American Marketing. San Francisco: Wadsworth Pub, 1961.

Cita MLA (9th ed.)

Shultz, William John. American Marketing. Wadsworth Pub, 1961.