APA (7e ed.) Bronvermelding

United Nations Industrial Development Organization & Hansen, J. R. (1978). Guide to practical project appraisal: Social benefit-cost analysis in developing countries. United Nations.

Chicago (17e ed.) Bronvermelding

United Nations Industrial Development Organization en John R. Hansen. Guide to Practical Project Appraisal: Social Benefit-cost Analysis in Developing Countries. New York: United Nations, 1978.

MLA (9e ed.) Bronvermelding

United Nations Industrial Development Organization en John R. Hansen. Guide to Practical Project Appraisal: Social Benefit-cost Analysis in Developing Countries. United Nations, 1978.