TY  - BOOK
AU  - Sacks,Gerald E.
AU  - 
TI  - Degrees of nusolvability. 
U1  - 510/SAD 
PY  - 0000/// Univ. Press
PY  - 1966///
CY  - Princeton
KW  - Mathematics
KW  -  Mathematics
N1  - Includes index and Bibliography and Glossasry.
ER  -