000			00286nam a2200109Ia 4500
008			190428s9999||||xx |||||||||||||| ||und||
020			_a0-201-05827-8
100			_aPinter, C.C. _920757
245			_aSet theory
250			_b1971. viii-216
260			_bAddison-Wesley. Massachusetts, U.S.A.
999			_c20512 _d20512