000 00294nam a2200121Ia 4500
008 160710s1979 xx 000 0 und d
082 _a517.54 SIG
100 _aSIGLER, L E.
245 _aEXCERCISES IN SET THEORY
260 _bNAROSA PUBLISHING HOUSE
_c1979
300 _a134
942 _2ddc
_cB
999 _c42134
_d42134