Gautam, Ashutosh.
Ecology and pollution of mountain waters : a case study of bhagirathi river Ashutosh Gautam - New Dehli: Ashish publishing house, 1990. - viii, 209 p.
HB
Eng
8170243416 9788170243410
Water pollution
577.627 / ASE
Ecology and pollution of mountain waters : a case study of bhagirathi river Ashutosh Gautam - New Dehli: Ashish publishing house, 1990. - viii, 209 p.
HB
Eng
8170243416 9788170243410
Water pollution
577.627 / ASE