TY  - BOOK
AU  - Cohen,Morris Raphael
AU  - Nagel Ernest
AU  - Corcoran John
TI  - An introduction to logic
SN  - 0872201457 (cloth : alk. paper)
AV  - BC108 
PY  - 1993///
CY  - Indianapolis
PB  - Hackett Pub. Co.
KW  - Logic
N1  - Includes bibliographical references and indexes
ER  -