TY  - BOOK
AU  - Selby,Samuel M.
AU  - Sweet,Leonard
TI  - Sets, relations, functions
AV  - QA248 .S38
U1  - 512.817 
PY  - 1963///]
CY  - New York
PB  - McGraw-Hill
KW  - Set theory
KW  - Local
KW  - Algebra, Abstract
KW  - Functions
ER  -