Willke, J. C. (1984). Slavery and abortion (ed.). Hayes Publishing company.
Chicago-čujuhus (17. p.)Willke, J C. Slavery and Abortion. ed. Cincinnati: Hayes Publishing company, 1984.
MLA-čujuhus (9. p.)Willke, J C. Slavery and Abortion. ed. Hayes Publishing company, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.