TY  - BOOK
AU  - Halmos,Paul R
TI  - Naive set theory
U1  - 511.1 HAL 
PY  - 1960///
CY  - Princeton : 
PB  - Van Nostrand
KW  - Arithmetic -- Foundations
KW  - Arithmétique -- Fondements
N1  - Includes index
ER  -