APA (7th ed.) Citation

Schaefer, R. T. (1990). Racial and ethnic groups (4th ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Schaefer, Richard T. Racial and Ethnic Groups. 4th ed. USA: Harper Collins, 1990.

MLA (9th ed.) Citation

Schaefer, Richard T. Racial and Ethnic Groups. 4th ed. Harper Collins, 1990.