000 00267nam a2200109Ia 4500
100 _aChakrabarti, B. & Sengupta, B.
942 _cBK
245 _aFundamentals of reference service.
260 _aWorld press, Calcutta
_c1985
082 _a025.52 Cha
300 _axix,248
999 _c67126
_d67126