TY  - BOOK
AU  - Lindgren,B W  .
AU  - Mcelrath,G W  .
AU  - Berry,D A  .
TI  - Introduction to probablity and statistic / 
U1  - 519 
PY  - 1969///
CY  - U S A : 
PB  - Collier macmillan , 
KW  - Probablities
N1  - Includes bibliography and index
ER  -