APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.