Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.