Cita APA (7a ed.)

Morell, J. A. (1979). Program evaluation in social research. Pergamon Press.

Cita Chicago Style (17a ed.)

Morell, Jonathan A. Program Evaluation in Social Research. New York: Pergamon Press, 1979.

Cita MLA (8a ed.)

Morell, Jonathan A. Program Evaluation in Social Research. Pergamon Press, 1979.