TY  - BOOK
AU  - Hamblin ,C.L..
AU  - Belnap,Nuel   .
TI  - Imperatives / 
SN  - 0631151931
U1  - 425 
PY  - 1987///
CY  - New York : 
PB  - Basil Blackwell , 
KW  - IMPERATIVES
N1  - Includes bibliography & index
ER  -