APA (7th ed.) Citation

Schaefer, R. T. (1993). Racial and ethnic groups (5th ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Schaefer, Richard T. Racial and Ethnic Groups. 5th ed. New York: Harper Collins, 1993.

MLA (9th ed.) Citation

Schaefer, Richard T. Racial and Ethnic Groups. 5th ed. Harper Collins, 1993.