TY  - BOOK
AU  - Johnson, Palmer O.
TI  - Statistical methods in research
AV  - QA276 .J6
U1  - 311 
PY  - 1949///
CY  - New York
PB  - Prentice-Hall
KW  - Mathematical statistics
KW  - Research
KW  - Probabilities
N1  - Includes bibliographical references and index
ER  -