TY  - BOOK
AU  - Lewin, Kurt
AU  - Cartwright, Dorwin
TI  - Field theory in social science: selected theoretical papers 
AV  - H 61 L4
PY  - 1960///?]
CY  - London
PB  - Associated Book Publishers
KW  - Ciencias sociales
KW  - Metodología
KW  - Psicología
ER  -