Eaton, R. M. (1925). Symbolism and truth: An introduction to the theory of knowledge. Harvard University Press,.
Chicago-viite (17. p.)Eaton, Ralph M. Symbolism and Truth: An Introduction to the Theory of Knowledge. Cambridge,: Harvard University Press,, 1925.
MLA-viite (8. p.)Eaton, Ralph M. Symbolism and Truth: An Introduction to the Theory of Knowledge. Harvard University Press,, 1925.
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