APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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