00451nam a2200157Ia 4500008004100000020001500041082001800056100002100074245005300095260004300148300000800191650001400199650002000213653002200233653003800255170901s1998    xx            000 0 und d  a8170351839  a333.952bG23C  aGautam, Ashutosh 0aConservation and Management of Aquatic Resources  aNew DelhibDaya Publishing Housec1998  a236  aEconomics  aSocial sciences  aAquatic ecosystem  aConservation of natural resources