00453nam a2200157Ia 4500008004100000020001800041082001600059100001800075245005400093260004300147300000800190650003300198650002000231653002700251700001700278170901s2013    xx            000 0 und d  a9788170356660  a363.7bK98S  aKumar, Arvind 0aSustainable Development and Environmental Science  aNew DelhibDaya Publishing Housec2013  a516  aSocial problems and services  aSocial sciences  aEnvironmental sciences  aSivakami, R.