Cita APA (7th ed.)

O, H. E. (1988). Agricultural Production Functions (1st edition.). Kalyani.

Cita Chicago (17th ed.)

O, Heady Earl. Agricultural Production Functions. 1st edition. New Delhi: Kalyani, 1988.

Cita MLA (9th ed.)

O, Heady Earl. Agricultural Production Functions. 1st edition. Kalyani, 1988.