00481nam a2200169Ia 4500008004100000020001800041082001800059100001700077245005800094260003500152300000800187650003300195650002000228653002900248700001700277700001700294170901s2013    xx            000 0 und d  a9788176222808  a363.707bK55S  aKhanna, D.R. 0aSustainable Approaches for Environmental Conservation  aNew DelhibBiotech Booksc2013  a344  aSocial problems and services  aSocial sciences  aEnvironmental protection  aBhutiani, R.  aChopra, A.K.