Gupta, O.P. . Modern Weed Management / Textual Documents O.P. Gupta. - Bikaner : Agro Botanica , C 1998. - xxi, 488p. : ill ; 24cm. . Index ISBN: 81-87167-08-4 Subjects--Index Terms: Botany Weed, Management Dewey Class. No.: 581.65 / Gu 959 Ho