Schaefer, R. T. (2001). Race and ethnicity in the United States (2nd ed.). Prentice Hall.
芝加哥风格引文Schaefer, Richard T. Race and Ethnicity in the United States. 2nd ed. Upper Saddle River, N.J.: Prentice Hall, 2001.
MLA引文Schaefer, Richard T. Race and Ethnicity in the United States. 2nd ed. Prentice Hall, 2001.
警告:这些引文格式不一定是100%准确.