Schwind, P. J. (1971). Migration and regional development in the United States, 1950-1960. Department of Geography, University of Chicago.
Chicago-viite (17. p.)Schwind, Paul J. Migration and Regional Development in the United States, 1950-1960. [Chicago]: Department of Geography, University of Chicago, 1971.
MLA-viite (9. p.)Schwind, Paul J. Migration and Regional Development in the United States, 1950-1960. Department of Geography, University of Chicago, 1971.
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