TY  - BOOK
AU  - Johnson,Palmer O.
TI  - Statistical methods in research
U1  - 519.5 
PY  - 1949/// [Printed 1950, 1961]
CY  - New York
PB  - Prentice-Hall
KW  - Mathematical statistics
KW  - Research
KW  - Probabilities
N1  - Includes "References."
ER  -