000 00281 a2200121 4500
100 _qRanganathan,SR
245 _aColon classification
250 _a6th.
260 _aNew Delhi
_bEss Ess Publications.
_c2022
300 _b3.126p.
650 _2library science
942 _2lcc
_cBK
999 _c300585
_d300585