000 00289nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aChatergee .p.n
245 0 _aSet Theory And Numbers
260 _bRajhans Publications
_c1980
300 _a132p
650 _aMathematics
942 _cBK
999 _c30750
_d30750