TY  - BOOK
AU  - Plantinga,Alvin  .
TI  - The nature of necessity / 
SN  - 0198244142
U1  - 113 
PY  - 1974///(rep.1989)
CY  - Oxford : 
PB  - Oxford University Press , 
KW  - PHILOSOPHY
N1  - Includes bibliography and index
ER  -