tinbergen, j. (1962). the appraisal of investment projects: The semi input- output method. the institute of national planning.
Chicago-referens (17:e uppl.)tinbergen, jan. The Appraisal of Investment Projects: The Semi Input- Output Method. cairo: the institute of national planning, 1962.
MLA-referens (9:e uppl.)tinbergen, jan. The Appraisal of Investment Projects: The Semi Input- Output Method. the institute of national planning, 1962.
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