Cita APA

Gupta, O. P. (1979). Aquatic weeds: Their menace and control: a text book and manual. Today & Tomorrow s printers & Publishers.

Chicago Edition Citation

Gupta, O P. Aquatic Weeds: Their Menace and Control: A Text Book and Manual. New Delhi: Today & Tomorrow s printers & Publishers, 1979.

Cita MLA

Gupta, O P. Aquatic Weeds: Their Menace and Control: A Text Book and Manual. Today & Tomorrow s printers & Publishers, 1979.