Cita APA (7th ed.)

Gupta, O. (1998). Weed management : Principles and practices .: O.P. Gupta. Agro Botanica.

Cita Chicago (17th ed.)

Gupta, O.P. Weed Management : Principles and Practices .: O.P. Gupta. New Delhi: Agro Botanica, 1998.

Cita MLA (9th ed.)

Gupta, O.P. Weed Management : Principles and Practices .: O.P. Gupta. Agro Botanica, 1998.