Gaya APA

J., P, W., w., P, D. (1979). Modern Farm Power (Edisi Ketiga). Reston, Virginia: Reston Publishing Co.Inc..

Gaya MLA

J., Promersberger, William., w., PRIEBE, DONALD. "Modern Farm Power". Edisi Ketiga Reston, Virginia: Reston Publishing Co.Inc., 1979. Text.