Park, R. E. The Nature of Race Relations: Robert E. Park. Theories of race and racism : a reader.(2003).
Chicago-Zitierstil (17. Ausg.)Park, Robert E. "The Nature of Race Relations: Robert E. Park." Theories of Race and Racism : A Reader.(2003) .
MLA-Zitierstil (8. Ausg.)Park, Robert E. "The Nature of Race Relations: Robert E. Park." Theories of Race and Racism : A Reader.(2003), .
警告：这些引文格式不一定是100％准确.