Gaya APA

Santayana, G. (1954). Three philosophical poets, Lucretius, Dante, Goethe. -- Anchor books, A 17. Pnerbitan asli 1910 . New York: Doubleday.

Gaya MLA

Santayana, G.(1863-1952). "Three philosophical poets, Lucretius, Dante, Goethe. -- Anchor books, A 17. Pnerbitan asli 1910 ". New York: Doubleday, 1954. Buku.