000 00439nam a2200157Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
020 _cRS35
040 _e497
_aMAIN
041 _aEnglish
082 _a628.166 P975C
100 _aPurohit, S K
245 0 _aChemical and biological method of water and air pollution control: A practical hygiene manual
260 _aBikaner
_bAgro Botanical
_c1985
300 _avi, 56 p.
942 _cBK
999 _c55940
_d55940