TY  - BOOK
AU  - Sommer,Robert
AU  - Sommer,Barbara
TI  - A practical guide to behavioral research: tools and techniques 
PY  - 2002///
CY  - New York
PB  - Oxford University Press
KW  - Social sciences
KW  - Research design
KW  - Psychology
KW  - Data collection
KW  - Research
KW  - methods
N1  - Includes indexes and glossary
ER  -