Gaya APA

Proctor, R, W., Zandt, T, V. (2008). Human factors in simple and complex systems (2nd ed.). Boca Raton, Florida: CRC Press.

Gaya MLA

Proctor, Robert, W.., Zandt, Trisha, Van. "Human factors in simple and complex systems". 2nd ed. Boca Raton, Florida: CRC Press, 2008. Text.