000 00310nam a2200109Ia 4500
008 220303s1982 xx 000 0 und d
041 _aeng
082 _a510.322 GOY / SET
100 _aGoyal, J. K.
_993481
245 _aSet Theory Number System And Bollean Algebra
260 _aMeerut
_bPragati Prakashan
_c1982
999 _c101713
_d101713