Schaefer, R. T. (2004). Sociology: A brief introduction (Fifth edition.). McGraw-Hill.
芝加哥风格引文Schaefer, Richard T. Sociology: A Brief Introduction. Fifth edition. Boston: McGraw-Hill, 2004.
MLA引文Schaefer, Richard T. Sociology: A Brief Introduction. Fifth edition. McGraw-Hill, 2004.
警告：这些引文格式不一定是100％准确.