000 00307nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a025.4 K92
100 _aKRISHAN KUMAR
245 0 _aTHEORY OF CLASSIFICATION
260 _aNEW DELHI
_bVikas publishing House
_c1983
300 _a22X14
942 _cBK
_2DDC
999 _c19773
_d19773