000 00300nam a2200121Ia 4500
008 221001s1966 xx 000 0 eng d
082 _a511.322 SIG
100 _aSigler, L. E.
245 0 _aExercises in set theory
260 _aNew Jersey
_bD. Van Nostrand
_c1966
300 _a133p.
942 _2ddc
_cBK
999 _c8737
_d8737