TY  - BOOK
AU  - Sommer,Robert
AU  - Sommer,Barbara Baker,b.1938
TI  - A practical guide to behavioral research: tools and techniques 
SN  - 0195026918
PY  - 1980///
CY  - New York
PB  - Oxford University Press
KW  - Psychological research
KW  - Social sciences
KW  - Research
KW  - Behavior
KW  - Methods
N1  - Includes index and bibliographical references
ER  -