000 00430nam a2200169Ia 4500
999 _c3963
_d3963
008 180613s9999||||xx |||||||||||||| ||und||
020 _cRs.30
040 _aMAIN
082 _bCHA
_a613.02
100 _aChakladar, A. K.
245 _aHygine
_bpriventive and social medicine
_cA. K. Chakladar
260 _bA.B. publication
_aKolkata
_c1993
300 _a155p.
650 _aChemistry
650 _aHygine-chemistry
942 _cBK