TY  - BOOK
AU  - Portner, Paul
TI  - Modality
SN  - 9780199292424
U1  - 415 POR 
PY  - 2009///
CY  - Oxford
PB  - Oxford University Press
KW  - Modality (Linguistics)
KW  - Modality (Logic)
N1  - Includes bibliographical references (p. [267]-283) and index
ER  -