Citazione Stile APA (7a Edizione)

Smith, R. J., Butler, B. R., & Le Bold, W. K. (1983). Engineering as a career. New York : McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Smith, Ralph J., Blaine R. Butler, e William K. Le Bold. Engineering as a Career. New York : McGraw-Hill, 1983.

Citatione MLA (9a ed.)

Smith, Ralph J., et al. Engineering as a Career. New York : McGraw-Hill, 1983.