Singer, I. (1957). Santayana's aesthetics: A critical introduction. Harvard University Press.
Chicago Style (17. basım) AtıfSinger, Irving. Santayana's Aesthetics: A Critical Introduction. Cambridge: Harvard University Press, 1957.
MLA (9th ed.) AtıfSinger, Irving. Santayana's Aesthetics: A Critical Introduction. Harvard University Press, 1957.
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