TY  - BOOK
AU  - Mach Bogdan
AU  -  Wesolowski Wlodzimiers
TI  - Social mobility and social structure Tr by Barbara
T2  - International Library of Sociology
U1  - Y:68, M6 
PY  - 1986///
CY  - London
PB  - Routledge and Kegan Paul       
KW  - Social Development
N1  - Bibliography: p 100-109
ER  -