TY  - BOOK
AU  - Pfeiffer, Paul E.
TI  - Concepts of probability theory
SN  - 9780486636771
U1  - 519.2 P476c2 
PY  - 1965///
CY  - New York
PB  - Dover Publishers
KW  - Probability theory
KW  - Mathematics
KW  - probability
ER  -