Παραπομπή APA

Gupta, V. (1975). Physiological aspects of dryland farming. Oxford & IBH publishing co. pvt. ltd.

Παραπομπή Chicago Style

Gupta, V.S. Physiological Aspects of Dryland Farming. New Delhi: Oxford & IBH publishing co. pvt. ltd, 1975.

Παραπομπή MLA

Gupta, V.S. Physiological Aspects of Dryland Farming. Oxford & IBH publishing co. pvt. ltd, 1975.