000			00301nam a2200121Ia 4500
008			211015s9999||||xx |||||||||||||| ||und||
040			_aMAIN
041			_aEnglish
082			_a517.521
245		0	_aSchaum's Outline of Set Theory and Related Topics
260			_c1964 _bSchaum _aNew York
942			_cBK
999			_c60959 _d60959