APA (7th ed.) Citation

Dr. N. C. Gupta & Dr. R. B. Sah. (2011). Organic farming. Enkay Publishing House.

Chicago Style (17th ed.) Citation

Dr. N. C. Gupta and Dr. R. B. Sah. Organic Farming. New Delhi: Enkay Publishing House, 2011.

MLA (9th ed.) Citation

Dr. N. C. Gupta and Dr. R. B. Sah. Organic Farming. Enkay Publishing House, 2011.