APA (7th ed.) Zitazioa
Snell, J. L. (1966). A handbook in history and philosophy. D C Heath and company.
Chicago Style (17th ed.) Zitazioa
Snell, John L. A Handbook in History and Philosophy. Boston: D C Heath and company, 1966.
MLA (9th ed.) Zitazioa
Snell, John L. A Handbook in History and Philosophy. D C Heath and company, 1966.
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