(1968). Region Conomics: A study in the economic structure, stability, and growth of regions. Mcgraw-Hill.
Chicago-čujuhus (17. p.)Region Conomics: A Study in the Economic Structure, Stability, and Growth of Regions. New York: Mcgraw-Hill, 1968.
MLA-čujuhus (9. p.)Region Conomics: A Study in the Economic Structure, Stability, and Growth of Regions. Mcgraw-Hill, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.