TY  - BOOK
AU  - Ruzsa,Imre
TI  - Modal logic with descriptions
T2  - Nijhoff international philosophy series
SN  - 9024724732
PY  - 1981///
CY  - The Hague
PB  - Nijhoff
KW  - Modality (Logic)
N1  - Includes index; Bibliography : p. 129
ER  -