TY  - BOOK
AU  - Kreyche,Robert J.
TI  - Logic for undergraduates
PY  - 1957///
CY  - New York
PB  - The Dryden Press
KW  - Logica
KW  - Manuali
KW  - sbaa
N1  - 4th printing; Glossario e indice
ER  -