000 00388nam a22001577a 4500
082 _a577 DHA/FU
100 _aDHALIWAL G.S.
245 _aFUNDAMENTALS OF ENVIRONMENTAL SCIENCE
260 _aLUDHIANA
_bKALYANI
_c1998
300 _a374P.
650 _aBASIC CONCEPT
650 _aENVIRONMENTAL POLLUTION
650 _aNATURAL RESOURCES
650 _aFUTURE OF MANKIND
942 _cBK
999 _c297635
_d297635