International University Society & Haarhoff, T. J. The unity of mankind: A course of selected reading by authorities. International University Society.
Chicago-Zitierstil (17. Ausg.)International University Society und T. J. Haarhoff. The Unity of Mankind: A Course of Selected Reading by Authorities. Nottingham: International University Society.
MLA-Zitierstil (8. Ausg.)International University Society und T. J. Haarhoff. The Unity of Mankind: A Course of Selected Reading by Authorities. International University Society.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.