APA (7th ed.) Zitazioa

Levi, P. (1971). Guide to Greece: Central Greece. Penguin Books.

Chicago Style (17th ed.) Zitazioa

Levi, Peter. Guide to Greece: Central Greece. Middlesex: Penguin Books, 1971.

MLA (9th ed.) Zitazioa

Levi, Peter. Guide to Greece: Central Greece. Penguin Books, 1971.