000 00477 a2200181 4500
020 _a817000022x
041 _aEn
082 _a025.52
_bSHA
100 _aSharma , Jagdish Saran
245 _aRefernce service and sources of information
260 _c1987
_aNew Delhi
_bEss Ess Publications
_g1987
300 _c23 cm.
_aviii,288 p.
650 _aLIBRARY SCIENCES
650 _aINFORMATION SERVICES
650 _aREFERENCE SERVICE
700 _aGrover , D.R.
942 _cLN
999 _c20422
_d21969