APA (7th ed.) Zitazioa
Skowroñski, K. P. (2007). Santayana and America: Values, liberties, responsibility. Cambridge Scholars Pub..
Chicago Style (17th ed.) Zitazioa
Skowroñski, Krysztof Piotr. Santayana and America: Values, Liberties, Responsibility. Newcastle, U.K.: Cambridge Scholars Pub., 2007.
MLA (9th ed.) Zitazioa
Skowroñski, Krysztof Piotr. Santayana and America: Values, Liberties, Responsibility. Cambridge Scholars Pub., 2007.
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