APA (7th ed.) Citation

Rogers, J. A. (1980). Nature knows no color-line: Research into the Negro ancestry in the white race (3rd ed.). Helga M. Rogers.

Chicago Style (17th ed.) Citation

Rogers, J. A. Nature Knows No Color-line: Research into the Negro Ancestry in the White Race. 3rd ed. St. Petersburg, FL: Helga M. Rogers, 1980.

MLA (9th ed.) Citation

Rogers, J. A. Nature Knows No Color-line: Research into the Negro Ancestry in the White Race. 3rd ed. Helga M. Rogers, 1980.