TY  - BOOK
AU  - Black,Max
TI  - Critical thinking; an introduction to logic and scientific method
T2  - Prentice-hall philosophy series
AV  - BC71 B57 1952
PY  - 1952///
CY  - New York
PB  - Prentice Hall
KW  - Lógica
KW  - Lenguaje y lenguas
ER  -