00585nam a22001817a 450000500170000001000150001702000310003203500140006303700130007708200140009010000170010424500640012125000090018526000420019427001210023630000270035750000190038420210816171521.0  aENG-129863  c1195.00a978-93-84402-95-2  aEN-113395  bDBAD/PUB  a363.70068  aReena Kumari  aEnvironmental Challenges of the 21st century:cReena Kumari  a2018  bGyan Geeta Prakashanc2018aNew Delhi  aF-7, Gali No.1, Panchsheel Garden Ext. Naveen ShahdarabNew Delhie110032k09716234769mgyangeetaprakashan@gmail.com  aviii;292p.c22cm (hbk)  aincludes index