APA (7th ed.) Citation

Orlov, A., Handlin, O., & Thernstrom, S. (1980). Harvard Encyclopedia of American Ethnic Groups. Harvard University Press.

Chicago Style (17th ed.) Citation

Orlov, Ann, Oscar Handlin, and Stephan Thernstrom. Harvard Encyclopedia of American Ethnic Groups. Cambridge: Harvard University Press, 1980.

MLA (9th ed.) Citation

Orlov, Ann, et al. Harvard Encyclopedia of American Ethnic Groups. Harvard University Press, 1980.