Regional incomes in the United States, 1929-1967 : level, distribution, stability, and growth /
Philip M. Lankford.
- Chicago : University of Chicago, Dept. of Geography, 1972
- x, 137 p : ill. ; 23 cm.
- University of Chicago Department of Geography research paper ; no. 145 .
- Research paper (University of Chicago. Department of Geography) ; no. 145. .
Includes bibliographical references.
Income--History.--United States Economic zoning--United States.