Ecology and pollution of Ganga river :
363.7394KHA
Khanna, Dev Raj
Ecology and pollution of Ganga river : by Dev Raj Khanna a limnological study at Hardwar /.- New Delhi:Ashish Publishing House ,1993.
241p. :ill.;21cm(Hb)
Note: Includes bibliographical references.
ISBN:8170245419 Rs. 00.00
Cen Lib/Ret /A-680522/ A-680522 / 0.00 /sign