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Freeman, Howard E., Peter H. Rossi, and 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.

Freeman, 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.