Freeman, H. E., Rossi, P. H., & Rosenbaum, S. (1980). Evaluating social projects in developing countries. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিFreeman, Howard E., Peter H. Rossi, এবং Sonia Rosenbaum. Evaluating Social Projects in Developing Countries. Paris : Washington, D.C.: Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor, 1980.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিFreeman, Howard E., et al. Evaluating Social Projects in Developing Countries. Development Centre of the Organisation for Economic Co-operation and Development ; OECD Publications and Information Center, distributor, 1980.