00337nam a2200121Ia 4500008004100000020001500041041001200056100001300068245006100081260004800142300000800190650001700198221030s9999    xx            000 0 und d  a8122436693  aEnglish  aK. Kumar 0aBasics of Environmental Resource Managementcby K. Kumar  bNew  Age International PubaNew Delhic2015  a145  aBB Chemistry