TY  - BOOK
AU  - Leigh Duane E
TI  - Analysis of the determinants of occupational upgra
T2  - Institute for Research on Poverty Monograph Series
U1  - X:991,1.73.N7, L8 
PY  - 1978///
CY  - New York
PB  - Academic         
KW  - Labour Market
ER  -