TY  - BOOK
AU  - Bernays Paul
AU  -  Muller Gert H Ed.
TI  - Sets and classes on the work
T2  - Studies in logic and foundations of mathematics
U1  - B217, L6 
PY  - 1976///
CY  - New York    
PB  -  North Holland       
KW  - Axiomatic Set theory
ER  -