Citazione Stile APA (7a Edizione)

Levens, A. S. (1962). Graphics: With an introduction to conceptual design. Wiley.

Citazione stile Chigago Style (17a edizione)

Levens, A. S. Graphics: With an Introduction to Conceptual Design. New York: Wiley, 1962.

Citatione MLA (8a ed.)

Levens, A. S. Graphics: With an Introduction to Conceptual Design. Wiley, 1962.