Kaplan, M. (1960). Leisure in America: A social inquiry. New York: Wiley.
Trích dẫn kiểu ChicagoKaplan, Max. Leisure in America: A Social Inquiry. New York: Wiley, 1960.
MLA引文Kaplan, Max. Leisure in America: A Social Inquiry. New York: Wiley, 1960.
警告：这些引文格式不一定是100％准确.