(1980). Evaluating social action projects: Principles, methodological aspects, and selected examples. Unesco.
芝加哥风格引文Evaluating Social Action Projects: Principles, Methodological Aspects, and Selected Examples. Paris: Unesco, 1980.
MLA引文Evaluating Social Action Projects: Principles, Methodological Aspects, and Selected Examples. Unesco, 1980.
警告：这些引文格式不一定是100％准确.