000 00357nam a2200121Ia 4500
008 220217s9999||||xx |||||||||||||| ||und||
082 _a628.168 SHA
100 _aSharma, B K and Kaur, H
_9106
245 0 _aIntroduction to environmental pollution
260 _akrishna prakashana
_bMeerut
_c1997
300 _b125
650 _aENVIRONMENTAL STUDIES
_9107
999 _c165162
_d165162