TY  - BOOK
AU  - Hagen, Everett Einar
TI  - On the theory of social change: how economic growth begins 
AV  - HD 82 H2
PY  - 1962///
CY  - Homewood, Ill.
PB  - Dorsey
KW  - Desarrollo económico
KW  - Cambio social
ER  -