000 00286nam a2200109 a 4500
100 1 _aPurohit S S
245 1 0 _aAir environment and pollution
260 _aJodhpur :
_bAgrobios,
_c2008.
300 _a244 p. ;
856 4 0 _uhttp://www.amazon.com/exec/obidos/ASIN/chopaconline-20
942 _cBK
999 _c7933
_d7933