APA (7th ed.) Zitazioa

(2013). Progressive beginner ukulele / by Peter Geller.

Chicago Style (17th ed.) Zitazioa

Progressive Beginner Ukulele / by Peter Geller. 2013.

MLA (9th ed.) Zitazioa

Progressive Beginner Ukulele / by Peter Geller. 2013.

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