Levine, C. (1993). Taking sides: Clashing views on controversial bioethical issues (5th ed.). Dushkin.
Chicago-referens (17:e uppl.)Levine, Carol. Taking Sides: Clashing Views on Controversial Bioethical Issues. 5th ed. Connecticut: Dushkin, 1993.
MLA-referens (9:e uppl.)Levine, Carol. Taking Sides: Clashing Views on Controversial Bioethical Issues. 5th ed. Dushkin, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.