TY  - BOOK
AU  - Card David Ed.
AU  -  Freeman Richard B. Ed.
TI  - Small differences that matter :  Labour markets and   
T2  - National Bureau of Economic Research, Comparative Labour Markets
U1  - X:991.720m73.N9, N3 
PY  - 1993///
CY  - Chicago
PB  - University of Chicago        
KW  - Labour Market Economics-Canada
ER  -