Education and income in the early 20th century : evidence from the prairies
- Cambridge, Mass. : National Bureau of Economic Research, 1999
- 48
WAGES--EFFECT OF EDUCATION ON--IOWA--HISTORY--20TH CENTURY WAGES FIFFERENTIALS--IOWA--HISTORY--20TH CENTURY EDUCATION--IOWA--ECONOMIC ASPECTS--HISTORY--20TH CENTURY WAGES--EFFECT OF EDUCATION ON--IOWA--ECONOMETRIC MODELS