TY  - BOOK
AU  - 
AU  - 
TI  - Dinámica social
SN  - 9682508061
PY  - 1982///
CY  - México
PB  - Interamericana
KW  - Social history
KW  - Local
KW  - Social sciences
KW  - Programmed instruction
N1  - Includes bibliographies and index
ER  -