TY  - BOOK
AU  - Devlin,Keith J.
TI  - Sets, functions and logic: Basic concepts of university mathematics 
SN  - 041222660x
AV  - QA37.2 S47
PY  - 1981///
CY  - London
PB  - Chapman and Hall
KW  - Matemáticas
KW  - 1961-
ER  -