United Nations Industrial Development Organisation. (1978). Guide to Pracatical Project Appraisal: :Social Benefit-Cost Analysis in Developing Countries. OUP.
শিকাগো স্টাইলে সাইটেশনUnited Nations Industrial Development Organisation. Guide to Pracatical Project Appraisal: :Social Benefit-Cost Analysis in Developing Countries. New York: OUP, 1978.
এমএলএ সাইটেশনUnited Nations Industrial Development Organisation. Guide to Pracatical Project Appraisal: :Social Benefit-Cost Analysis in Developing Countries. OUP, 1978.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.