TY  - BOOK
AU  - Underwood,Benton J.
TI  - Elementary statistics
T2  - The Century psychology series
AV  - HA29 .U43
U1  - 519.5 UND 
PY  - 1954///]
CY  - New York
PB  - Appleton-Century-Crofts
KW  - Statistics
ER  -