Não informado. (1978). Evaluation and Program Planning. Pergamon Press.
Chicagoスタイル(17版)引用形式Não informado. Evaluation and Program Planning. New York: Pergamon Press, 1978.
MLA(8版)引用形式Não informado. Evaluation and Program Planning. Pergamon Press, 1978.
警告: この引用は必ずしも正確ではありません.