TY  - BOOK
AU  - Underwood Benton J
TI  - Problems in experimental design and inference :  Work book for the first course in experimental psychology
U1  - SM:44, K6 
PY  - 1966///
CY  - New Jersey 
PB  - Prentice Hall USA    
KW  - PYSCHOLOGY - EXPERIMENTAL METHODS
ER  -