TY  - BOOK
AU  - Portner,Paul
TI  - Modality
SN  - 9780199292431
U1  - 415 22
PY  - 2009///
CY  - New York
PB  - Oxford University Press
KW  - Modality (Linguistics)
KW  - Modality (Logic)
N1  - Includes bibliographical references and index
ER  -