Kraus, R. G. (1998). Recreation & leisure in modern society (5th ed.). Jones and Bartlett Publishers.
芝加哥风格引文Kraus, Richard G. Recreation & Leisure in Modern Society. 5th ed. Sudbury, Mass: Jones and Bartlett Publishers, 1998.
MLA引文Kraus, Richard G. Recreation & Leisure in Modern Society. 5th ed. Jones and Bartlett Publishers, 1998.
警告：这些引文格式不一定是100％准确.