000 00323nam a2200133Ia 4500
008 221001s1977 xx 000 0 eng d
082 _a658 CHA
100 _aChakravarty, A. M.
245 0 _aFactory organization
250 _a3rd ed.
260 _aCalcutta
_bPublishers Guild
_c1977
300 _a421p.
942 _2ddc
_cBK
999 _c12836
_d12836