Cita APA (7a ed.)

Knopke, H. J., Norrell, R. J., Rogers, R. W., & Rogers, R. W. (1991). Opening doors: Perspectives on race relations in contemporary America. Univ. of Alabama Pr.

Cita Chicago Style (17a ed.)

Knopke, Harry J., Robert Jefferson Norrell, Ronald W. Rogers, y Ronald W. Rogers. Opening Doors: Perspectives on Race Relations in Contemporary America. Tuscaloosa, Ala. [u.a.]: Univ. of Alabama Pr, 1991.

Cita MLA (8a ed.)

Knopke, Harry J., et al. Opening Doors: Perspectives on Race Relations in Contemporary America. Univ. of Alabama Pr, 1991.