Não informado. (1927). Proceedings and addresses of the American Philosophical Association. American Philosophical Association.
Cita Chicago Style (17a ed.)Não informado. Proceedings and Addresses of the American Philosophical Association. Newark, Del: American Philosophical Association, 1927.
Cita MLA (8a ed.)Não informado. Proceedings and Addresses of the American Philosophical Association. American Philosophical Association, 1927.
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