Citazione Stile APA (7a Edizione)

(1917). The Original Guckert's chords for the ukulele at sight: Without notes or teacher. Union Music.

Citazione stile Chigago Style (17a edizione)

The Original Guckert's Chords for the Ukulele at Sight: Without Notes or Teacher. Toledo: Union Music, 1917.

Citatione MLA (9a ed.)

The Original Guckert's Chords for the Ukulele at Sight: Without Notes or Teacher. Union Music, 1917.