TY  - BOOK
T1  - Possible worlds :an introduction to logic and its philosophy /
DA  - c1979.
CY  - Indianapolis :
AU  - Bradley, Raymond.
AU  - Swartz, Norman,
CN  - BC51
CN  - BC51
PB  - Hackett Pub. Co.,
PP  - Indianapolis :
PY  - c1979.
N1  - Includes index.
ID  - 172829
KW  - Logic.
KW  - Philosophy.
KW  - Possibility.
KW  - Proposition (Logic)
SN  - 091514459X (pbk.)
SN  - 0915144603
TI  - Possible worlds :an introduction to logic and its philosophy /
ER  -