Willke, J. C. (1984). Slavery and abortion (ed.). Hayes Publishing company.
Lua i Stíl Chicago (17ú heag.)Willke, J C. Slavery and Abortion. ed. Cincinnati: Hayes Publishing company, 1984.
Lua MLA (9ú heag.)Willke, J C. Slavery and Abortion. ed. Hayes Publishing company, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.