Santayana, G. (1916). Three philosophical poets: Lucretius, Dante and Goethe. Harvard University.
Chicago-čujuhus (17. p.)Santayana, George. Three Philosophical Poets: Lucretius, Dante and Goethe. Cambridge, Reino Unido: Harvard University, 1916.
MLA-čujuhus (9. p.)Santayana, George. Three Philosophical Poets: Lucretius, Dante and Goethe. Harvard University, 1916.
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