Não informado. (1927). Proceedings and addresses of the American Philosophical Association. American Philosophical Association.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Proceedings and Addresses of the American Philosophical Association. Newark, Del: American Philosophical Association, 1927.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Proceedings and Addresses of the American Philosophical Association. American Philosophical Association, 1927.
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