TY  - BOOK
AU  - Keppel, Geoffrey
AU  - Keppel, Geoffrey
TI  - Data analysis for research designs: Analysis of variance and multiple regression/ correlation approaches
SN  - 0-7167-1991-6
U1  - 311.23 
PY  - 1989///
CY  - New York
PB  - W. H. Freeman & Company
ER  -