APA

Gupta U. . S., . (1995). Production and Improvement of crops for drylands. New Delhi: Oxford & IBH Publishing Co PVT LTD.

Chicago

Gupta U S, . 1995. Production and Improvement of crops for drylands. New Delhi: Oxford & IBH Publishing Co PVT LTD.

Harvard

Gupta U. . S., . (1995). Production and Improvement of crops for drylands. New Delhi: Oxford & IBH Publishing Co PVT LTD.

MLA

Gupta U S, . Production and Improvement of crops for drylands. New Delhi: Oxford & IBH Publishing Co PVT LTD. 1995.