APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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