000 00320nam a2200121Ia 4500
008 211228s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aKumar, Krishan
245 0 _aTheory of classification
260 _bVikas
_aNew Delhi
_c1981
653 _aClassification
942 _c1
999 _c198366
_d198366