Citazione APA

Gupta, O. P., & Lamba, P. S. (1978). Modern weed science: In the tropics and subtropics (1.). Today and Tomarrows.

Stile di citazione Chicago

Gupta, O P., e P S. Lamba. Modern Weed Science: In the Tropics and Subtropics. 1. New Delhi: Today and Tomarrows, 1978.

Citazione MLA

Gupta, O P., e P S. Lamba. Modern Weed Science: In the Tropics and Subtropics. 1. Today and Tomarrows, 1978.