Cita APA (7th ed.)

STONE, A. A., & GULVIN, H. E. (1977). Machines for power farming.-- 3rd ed. John Wiley and Sons.

Cita Chicago (17th ed.)

STONE, Archie A., i Harold E. GULVIN. Machines for Power Farming.-- 3rd Ed. New York: John Wiley and Sons, 1977.

Cita MLA (9th ed.)

STONE, Archie A., i Harold E. GULVIN. Machines for Power Farming.-- 3rd Ed. John Wiley and Sons, 1977.