frisch, r. (1963). investment requirements under a given time shape of current final demand. National Planning Institute.
Lua i Stíl Chicago (17ú heag.)frisch, ragnar. Investment Requirements Under a Given Time Shape of Current Final Demand. cairo: National Planning Institute, 1963.
Lua MLA (9ú heag.)frisch, ragnar. Investment Requirements Under a Given Time Shape of Current Final Demand. National Planning Institute, 1963.
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