00656nam a22001937a 4500003000800000005001700008008004100025020002100066040002100087082001500108245008500123260003200208300002900240365001400269504004100283505008800324650002900412700002100441BD-DhUL20151222101949.0151221s1999    ii |||||  ||| 00| 0 eng d  a8126103558 (set)  aBD-DhULcBD-DhUL  a363.7bENV00aEnvironmental problems : bprotection and control /ceditor in chief Arun  Kumar  aNew Delhi :bAnmol, c1999.  a2 v. : bill. ;c 25 cm.  aIRSb2500  aIncludes bibliographical references.  av. 1. Environmental concept -- v. 2. Environmental problems, production and control 0aEnvironmental protection1 aKumar, Aruneed.