Park, R. E. The Nature of Race Relations: Robert E. Park. Theories of race and racism : a reader.(2003).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPark, Robert E. "The Nature of Race Relations: Robert E. Park." Theories of Race and Racism : A Reader.(2003) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रPark, Robert E. "The Nature of Race Relations: Robert E. Park." Theories of Race and Racism : A Reader.(2003), .
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