TY  - BOOK
AU  - Nagel Ernest
TI  - Principles of the theory of probability
T2  - International encyclopaedia of unified science : Foundations of the unity of science; 6
U1  - B281, G91;1   TTR 
PY  - 1939///
CY  - New York    
PB  -  University of Chicago      
N1  - Bibliography p
ER  -