Cita APA (7a ed.)

MacFeely, W. S. (1991). Frederick Douglass. W.W. Norton.

Cita Chicago Style (17a ed.)

MacFeely, William S. Frederick Douglass. New York [etc.]: W.W. Norton, 1991.

Cita MLA (9a ed.)

MacFeely, William S. Frederick Douglass. W.W. Norton, 1991.