Guide to practical project appraisal : social benefit-cost analysis in developing countries - Hansen, John R.; United Nations Industrial Development Organization (New York : United Nations, 1978)
"Written by John R. Hansen."
At head of title: United Nations Industrial Development Organization, Vienna
"United Nations publication. Sales no. E.78.II.B.3."
Includes index
Bibliography: p. 115-117
Keywords: Economic development projects -- Evaluation