Style de citation APA (7e éd.)

Willke, J. C. (1984). Slavery and abortion (ed.). Hayes Publishing company.

Style de citation Chicago (17e éd.)

Willke, J C. Slavery and Abortion. ed. Cincinnati: Hayes Publishing company, 1984.

Style de citation MLA (9e éd.)

Willke, J C. Slavery and Abortion. ed. Hayes Publishing company, 1984.