TY  - BOOK
AU  - Williamson, T.
TI  - Modal logic as metaphysics
SN  - 9780191752506
PY  - 2013///
PB  - OUPOxford University Press
UR  - http://dx.doi.org/10.1093/acprof:oso/9780199552078.001.0001
ER  -