000 00341nam a22001457a 4500
999 _c253323
_d253323
020 _a9788184870756
082 _a363.7
_bDHA/EN
100 _aDahiya,puspha
245 _aEnvironmental Science
_bA new approach
260 _aNew Delhi
_bNasora
_c2013
300 _a246
546 _aEnglish
700 _aAhlawat,Manisha
942 _2ddc
_cBK