Cita APA (7a ed.)

Ellison, C. G., & Powers, D. A. (1994). The Contact Hypothesis and Racial Attitudes among Black Americans.

Cita Chicago Style (17a ed.)

Ellison, Christopher G., y Daniel A. Powers. The Contact Hypothesis and Racial Attitudes Among Black Americans. 1994.

Cita MLA (9a ed.)

Ellison, Christopher G., y Daniel A. Powers. The Contact Hypothesis and Racial Attitudes Among Black Americans. 1994.