TY  - BOOK
AU  - Keene, G B
AU  - Stark M  [series editor]
AU  - Ulam, S  [series editor]
TI  - Abstract sets and finite ordinals
U1  - 512.89 
PY  - 1961///
CY  - Oxford
PB  - Pergamon press
KW  - Finite classes, theory of
KW  - Finite sets, theory of
KW  - Set theory
ER  -