APA引文

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引文

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

警告：這些引文格式不一定是100％准確.