TY  - GEN
AU  - Sommer, Robert
AU  - Sommer, Barbara B.
TI  - A Practical guide to behavioral research : tools and techniques
SN  - 0195039785
PY  - 1986///
CY  - New York
PB  - Oxford University Press
KW  - SOCIAL SCIENCES-Research-Methodology
KW  - PSYCHOLOGY-Research-Methodology
N1  - Index included
ER  -