Cita APA (7th ed.)

Hopfen, H. J. (1962). Farm implements for arid and tropical regions (Rev. ed.). F.A.O..

Cita Chicago (17th ed.)

Hopfen, H. J. Farm Implements for Arid and Tropical Regions. Rev. ed. Rome: F.A.O., 1962.

Cita MLA (8th ed.)

Hopfen, H. J. Farm Implements for Arid and Tropical Regions. Rev. ed. F.A.O., 1962.