Gupta, O. P. Weedy aquatic plants: their utility, menace and management / [by] O.P.Gupta - Jodhpur Agrobios (India) 2001 - 273 pages. Includes biblography, appendix and index. ISBN: 8177540572 Subjects--Topical Terms: WeedsAgricultural pestsHerbicidesPest control Dewey Class. No.: 632.5 / GUP