Gaya APA

Pickering, W., Mallows, D. (1972). Stress Analysis Problems In S.I. Unit (1st ed.). New York: Pergamon Press.

Gaya MLA

Pickering, W.J.., Mallows, D.F.. "Stress Analysis Problems In S.I. Unit". 1st ed. New York: Pergamon Press, 1972. Text.