TY  - BOOK
AU  - Cocchiarella, Nino B
AU  - Freund, Max A
TI  - Modal logic : an introduction to its syntax and semantics
SN  - 9780195366587
SN  - 200800718
U1  - 160 COC 
PY  - 2008///
CY  - Oxford
PB  - Oxford University Press
KW  - Modality (Logic)
N1  - Includes bibliographical references (p. 257-261) and index
ER  -