(1968). Region Conomics: A study in the economic structure, stability, and growth of regions. Mcgraw-Hill.
Chicago-viite (17. p.)Region Conomics: A Study in the Economic Structure, Stability, and Growth of Regions. New York: Mcgraw-Hill, 1968.
MLA-viite (9. p.)Region Conomics: A Study in the Economic Structure, Stability, and Growth of Regions. Mcgraw-Hill, 1968.
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