Cita APA

Sowell, T. 1., & Sowell, T. 1. (1981). Ethnic America: A history. New York: Basic Books.

Citación estilo Chicago

Sowell, Thomas 1930-, y Thomas 1930- Sowell. Ethnic America: A History. New York: Basic Books, 1981.

Cita MLA

Sowell, Thomas 1930-, y Thomas 1930- Sowell. Ethnic America: A History. New York: Basic Books, 1981.