Παραπομπή σε μορφή APA (7η εκδ.)

Beatles. (2008). Across the universe : original keys for singers : vocal/piano: Music from the motion picture. Exclusively distributed by Hal Leonard.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beatles. Across the Universe : Original Keys for Singers : Vocal/piano: Music from the Motion Picture. Milwaukee, WI: Exclusively distributed by Hal Leonard, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Beatles. Across the Universe : Original Keys for Singers : Vocal/piano: Music from the Motion Picture. Exclusively distributed by Hal Leonard, 2008.