Não informado. (1927). Proceedings and addresses of the American Philosophical Association. American Philosophical Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Proceedings and Addresses of the American Philosophical Association. Newark, Del: American Philosophical Association, 1927.
MLA-Zitierstil (8. Ausg.)Não informado. Proceedings and Addresses of the American Philosophical Association. American Philosophical Association, 1927.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.