GWYNN, J. M. (1960). Curriculum principles and social trends.-- Ed.3. Macmillan Co.
芝加哥风格引文GWYNN, J. Minor. Curriculum Principles and Social Trends.-- Ed.3. New York: Macmillan Co, 1960.
MLA引文GWYNN, J. Minor. Curriculum Principles and Social Trends.-- Ed.3. Macmillan Co, 1960.
警告：这些引文格式不一定是100％准确.