APA (7th ed.) Citation

Corrigan, R. E., Kaufman, R. A., & Bauer, H. A. (1966). Why system engineering. Fearon Publishers.

Chicago Style (17th ed.) Citation

Corrigan, Robert E., Roger A. Kaufman, and Harold A. Bauer. Why System Engineering. Palo Alto, Calif.: Fearon Publishers, 1966.

MLA (8th ed.) Citation

Corrigan, Robert E., et al. Why System Engineering. Fearon Publishers, 1966.