TY  - BOOK
AU  - Galt A H
AU  - Smith L J
TI  - Models and the study of social change
SN  - 0-470-15163-3
U1  - 303.4 
PY  - 1976///
CY  - New York
PB  - John Wiley
KW  - Social change
KW  - Social sciences-methodology
ER  -