00621nam a2200205Ia 450000500170000000800410001701000150005802000110007304000190008404100120010308200150011510000200013024500980015026000420024830000320029050400260032265000180034865100390036685000100040520220618113345.0131103s9999    xx            000 0 und d  a8170243416  aRs.200  aLoreto College  aEnglish  a304.2bGAU  aGautam,Ashutosh  aEcology and pollution of mountain watersb a case study of Bhagirathi River cAshutosh Gautam  aDelhibAshish Publishing House c1990  aviii,209 p.b illus.,photos  aIncludes bibliography  aHuman Ecology  aFactors Affecting Social Behaviour  aLCLIB