Clerck, M. d. (1976). The operational seminar: A pioneering method of training for development. Unesco.
芝加哥风格引文Clerck, Marcel de. The Operational Seminar: A Pioneering Method of Training for Development. Paris: Unesco, 1976.
MLA引文Clerck, Marcel de. The Operational Seminar: A Pioneering Method of Training for Development. Unesco, 1976.
警告：这些引文格式不一定是100％准确.