Não informado. (1892). Philosophical Review. Cornell University, Sage School of Philosophy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Philosophical Review. Ithaca, NY: Cornell University, Sage School of Philosophy, 1892.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Philosophical Review. Cornell University, Sage School of Philosophy, 1892.
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