TY  - BOOK
AU  - Sommer, Barbara and Sommer, Robert
TI  - A practical guide to behavioral research: : tools and techniques
SN  - 0195104196
U1  - 150.1943 
PY  - 1997///
CY  - Oxford
PB  - ; Oxford Univercity Press
KW  - Behaviorism
KW  - Psychology
ER  -