Aquatic weeds

Aquatic and semi-aquatic plants of the lower Ganga delta Kumudranjan Naskar 1990 Aquatic vegetation and its use and control edited by D. S. Mitchell 1974 Aquatic weed management Gupta, O P 1987 Aquatic weed management Gupta, O. P. 1987 Ecology and management of aquatic vegetation in the Indian subcontinent edited by Brij Gopal 1990 The Control of aquatic Weeds Robson, T O 1973 The control of aquatic weeds Robson, T. O. 1970 The control of aquatic weeds Robson, T. O. 1968 Weed control methods for river basin management Gangstad, Edward O. 1978