tinbergen, j. (1963). the appraisal of investment project. National Planning Institute.
Chicago-čujuhus (17. p.)tinbergen, j. The Appraisal of Investment Project. cairo: National Planning Institute, 1963.
MLA-čujuhus (9. p.)tinbergen, j. The Appraisal of Investment Project. National Planning Institute, 1963.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.