Cita APA (7a ed.)

Ford, G. B. (1969). A degree of difference. Farrar, Straus & Giroux.

Cita Chicago Style (17a ed.)

Ford, George Barry. A Degree of Difference. New York: Farrar, Straus & Giroux, 1969.

Cita MLA (8a ed.)

Ford, George Barry. A Degree of Difference. Farrar, Straus & Giroux, 1969.