Gaya APA

Foust, A, S., Wenzel, L, A, (. (1960). Principles of Unit Operations Second Edition . New York: John Wiley and Sons.

Gaya MLA

Foust, Alan, S., Wenzel, Leonard, A, (a.o). "Principles of Unit Operations Second Edition". New York: John Wiley and Sons, 1960. Text.