Não informado. Social biology and human affairs. British Social Biology Council.
Chicago-Zitierstil (17. Ausg.)Não informado. Social Biology and Human Affairs. London: British Social Biology Council.
MLA-Zitierstil (8. Ausg.)Não informado. Social Biology and Human Affairs. British Social Biology Council.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.