Cita APA

Hetzel, F. V., & Albright, R. K. (1957). Belt conveyors and belt elevators (3. ed.). New York: John Wiley.

Citación estilo Chicago

Hetzel, Frederic V., and Russell K. Albright. Belt Conveyors and Belt Elevators. 3. ed. New York: John Wiley, 1957.

Cita MLA

Hetzel, Frederic V., and Russell K. Albright. Belt Conveyors and Belt Elevators. 3. ed. New York: John Wiley, 1957.