Search Results       Your search for [subject]Wage differentials -- Iowa -- History -- 20th century returned 1 record.           Education and income in the early 20th century : evidence from the prairies. by Goldin, Claudia.; Cambridge: National Bureau of Economic Research, 1999. Subject: Wages -- Effect of education on -- Iowa -- History -- 20th century; Wage differentials -- Iowa -- History -- 20th century; Education -- Iowa -- Econometric models.          Add to Book Cart Relevance: 40.40%