00425nam a2200145 a 450000500170000000800410001702000150005804100080007308200120008110000190009324500670011226400500017930000340022965000160026320260717091605.0260717s1994    ii            000 0 eng d  a8171005284  aeng04a628.1681 aMahajan, V. J.10aEnvironment protection challenges and issues /cMahajan, V. J. 1aNew Delhi :bDeep & Deep Publications,c1994.  axviii, 271 p. : ill. ; 22 cm. 4aEnvironment