Norman Wait Harris Memorial Foundation. Institute, Norman Wait Harris Memorial Foundation, Hoselitz, B. F., & Gerschenkron, A. (1952). The progress of underdeveloped areas. University of Chicago.
Lua i Stíl Chicago (17ú heag.)Norman Wait Harris Memorial Foundation. Institute, Norman Wait Harris Memorial Foundation, Bert F. Hoselitz, agus Alexander Gerschenkron. The Progress of Underdeveloped Areas. Chicago: University of Chicago, 1952.
Lua MLA (8ú heag.)Norman Wait Harris Memorial Foundation. Institute, et al. The Progress of Underdeveloped Areas. University of Chicago, 1952.
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