Não informado. (1978). Evaluation and Program Planning. Pergamon Press.
Style de citation Chicago (17e éd.)Não informado. Evaluation and Program Planning. New York: Pergamon Press, 1978.
Style de citation MLA (8e éd.)Não informado. Evaluation and Program Planning. Pergamon Press, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.