Cita APA (7th ed.)

tinbergen, j. (1962). the appraisal of investment projects: The semi input- output method. the institute of national planning.

Cita Chicago (17th ed.)

tinbergen, jan. The Appraisal of Investment Projects: The Semi Input- Output Method. cairo: the institute of national planning, 1962.

Cita MLA (9th ed.)

tinbergen, jan. The Appraisal of Investment Projects: The Semi Input- Output Method. the institute of national planning, 1962.

Atenció: Aquestes cites poden no estar 100% correctes.