United Nations industrial development organizations. (1978). Guide to practical project appraisal: Social benefit-cost analysis in developing countries. United Nations.
Citazione stile Chigago Style (17a edizione)United Nations industrial development organizations. Guide to Practical Project Appraisal: Social Benefit-cost Analysis in Developing Countries. New York: United Nations, 1978.
Citatione MLA (9a ed.)United Nations industrial development organizations. Guide to Practical Project Appraisal: Social Benefit-cost Analysis in Developing Countries. United Nations, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.