Cita APA (7a ed.)

Schaefer, R. T. (2012). Race and ethnicity in the United States (7. ed.). Pearson Education.

Cita Chicago Style (17a ed.)

Schaefer, Richard T. Race and Ethnicity in the United States. 7. ed. Boston [u.a.]: Pearson Education, 2012.

Cita MLA (9a ed.)

Schaefer, Richard T. Race and Ethnicity in the United States. 7. ed. Pearson Education, 2012.