United nations industrial development organizations. (1978). Guide to practical project appraisal: Social benefit cost analysis in developing countries. Oxford and IBH Publishing Co.Pvt.Ltd.
Trích dẫn kiểu ChicagoUnited nations industrial development organizations. Guide to Practical Project Appraisal: Social Benefit Cost Analysis in Developing Countries. New Delhi: Oxford and IBH Publishing Co.Pvt.Ltd, 1978.
Trích dẫn MLAUnited nations industrial development organizations. Guide to Practical Project Appraisal: Social Benefit Cost Analysis in Developing Countries. Oxford and IBH Publishing Co.Pvt.Ltd, 1978.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.