APA引文

Gupta, O., & Lamba, P. (1978). Modern weed science: In the tropics and sub-tropics. Today & Tomorrow s printers & Publishers.

Chicago Edition Citation

Gupta, O.P, and P.S Lamba. Modern Weed Science: In the Tropics and Sub-tropics. New Delhi: Today & Tomorrow s printers & Publishers, 1978.

MLA引文

Gupta, O.P, and P.S Lamba. Modern Weed Science: In the Tropics and Sub-tropics. Today & Tomorrow s printers & Publishers, 1978.