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.
Lua i Stíl Chicago (17ú heag.)Freeman, Howard E., Peter H. Rossi, agus 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.
Lua MLA (8ú heag.)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.