TY  - BOOK
AU  - Sommer, Robert.
AU  - Sommer, Barbara B.
TI  - A Practical Guide To Behavioral Research:Tools And Techniques
SN  - 0195026918
U1  - 150.72 SOM. 
PY  - 1980///
CY  - New York
PB  - Oxford University Press
KW  - Psychological Research
KW  - Social Science Research
ER  -