APA (7th ed.) Citation

Gupta, M. (2007). Handbook of organic farming and bio-fertilizers. ABD Pub..

Chicago Style (17th ed.) Citation

Gupta, M.K. Handbook of Organic Farming and Bio-fertilizers. New Delhi: ABD Pub., 2007.

MLA (9th ed.) Citation

Gupta, M.K. Handbook of Organic Farming and Bio-fertilizers. ABD Pub., 2007.