TY  - BOOK
AU  - Jahoda, Marie
TI  - Research methods in social relations
AV  - H 62 R45
PY  - 1951///
CY  - New York
PB  - Fryden
KW  - Investigación social
N1  - Contenido: Pte. 1 Basic processes. -- pte. 2. Selected techniques
ER  -