000 00561nam a22001817a 4500
003 BD-DhUL
005 20150115111155.0
008 150115s1985 ii a|||| |||| 000 0 eng d
040 _aBD-DhUL
_cBD-DhUL
082 _a628.16836
_bPUC
100 1 _aPurohit, S. K.
245 _aChemical and biological methods of water and air pollution control :
_bA practical hygiene manual /
_cS. K. Purohit
260 _aIndia :
_bAgro botanical,
_cc1985.
300 _aVI, 59 p. :
_bill. ;
_c16 cm.
650 0 _aBiological methods.
650 0 _aChemical.
942 _2ddc
_cBK
999 _c31443
_d31443