Marsden, D., & Oakley, P. (1990). Evaluating social development projects. Oxfam.
Cita Chicago (17th ed.)Marsden, David, i Peter Oakley. Evaluating Social Development Projects. Oxford: Oxfam, 1990.
Cita MLA (8th ed.)Marsden, David, i Peter Oakley. Evaluating Social Development Projects. Oxfam, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.