Citazione Stile APA (7a Edizione)

Beakley, G. C., & Leach, H. W. (1972). Engineering: An introduction to a creative profession (2d ed.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Beakley, George C., e H. W. Leach. Engineering: An Introduction to a Creative Profession. 2d ed. New York: Macmillan, 1972.

Citatione MLA (9a ed.)

Beakley, George C., e H. W. Leach. Engineering: An Introduction to a Creative Profession. 2d ed. Macmillan, 1972.