TY  - BOOK
AU  - Erikson Robert
AU  -  Goldthorpe John H
TI  - Constant flux :  A study of class mobility in industrial societies   
SN  - 0198273835
U1  - Y5:68.5.N9, N2/TD 
PY  - 1992///
CY  - New York
PB  - Clarendon Press        
N1  - Bibliography: P 399-422
ER  -