TY  - BOOK
AU  - Hagen,Everett Einar
ED  - Massachusetts Institute of Technology.
TI  - On the theory of social change: how economic growth begins 
U1  - 301.24 
PY  - 1962///
CY  - Homewood, IL.
PB  - Dorsey Press
KW  - Cambio social
KW  - Desarrollo económico
KW  - Aspectos sociales
ER  -