574.5263209541
K45E
           Khanna, Raj
               Ecology and pollution of Ganga river a limnoligical study at Hardwar \ Raj Khanna - New Delhi : Ashish Publishing House, 1993.
               241p.
                ISBN: 81-7024-541-9

132205
                Subjects: Gangas River (India and Bangladesh); Ecology-Gangas River-(India and Bangladesh); Pollution-Gangas River(India and Bangladesh).