TY - BOOK AU - Hanna,Frank A. TI - State income differentials, 1919-1954 U1 - 339.410973 PY - 1959/// CY - Durham, N.C. PB - Duke University Press KW - Income KW - United States KW - States N1 - "The final report of the Study of differences in State per capita incomes, which was supported jointly by Duke University and the Rockefeller Foundation."; Includes index ER -