Não informado. (1927). Proceedings and addresses of the American Philosophical Association. American Philosophical Association.
Citação do estilo Chicago (17ª ed.)Não informado. Proceedings and Addresses of the American Philosophical Association. Newark, Del: American Philosophical Association, 1927.
Citação MLA (8ª ed.)Não informado. Proceedings and Addresses of the American Philosophical Association. American Philosophical Association, 1927.
警告：这些引文格式不一定是100％准确.