000 00290 a2200121 4500
082 _a020 Gup.M6
100 _qGupta Pawan K
245 _aLibrary And Information Science
260 _c1986
_ajaipur
_bR B S A publishers
300 _b263p.
650 _2Library Science
942 _2ddc
_cBK
999 _c299781
_d299781