000 00303nam a2200121Ia 4500
008 220201s1977 xx 000 0 eng d
082 _bSEN
100 _aSengupta & chatterjee
245 0 _aDocumentation & information retrival
260 _aCalcutta
_bWorld press
_c1977
300 _a194
942 _2ddc
999 _c20735
_d20735