Cita APA (7a ed.)

Gupta, U. S. (1992). Crop improvement: Volume 1 : physiological attributes. Oxford & IBH Publishing Co..

Cita Chicago Style (17a ed.)

Gupta, U. S. Crop Improvement: Volume 1 : Physiological Attributes. New Delhi: Oxford & IBH Publishing Co., 1992.

Cita MLA (9a ed.)

Gupta, U. S. Crop Improvement: Volume 1 : Physiological Attributes. Oxford & IBH Publishing Co., 1992.