Mann, J. (1972). Learning to be: The education of human potential. Free Press.
芝加哥风格引文Mann, John. Learning to Be: The Education of Human Potential. New York: Free Press, 1972.
MLA引文Mann, John. Learning to Be: The Education of Human Potential. Free Press, 1972.
警告：这些引文格式不一定是100％准确.