APA (7th ed.) Citation

OneRepublic (Musical group) & Lewis, L. (2009). Echo. Syco Music.

Chicago Style (17th ed.) Citation

OneRepublic (Musical group) and Leona Lewis. Echo. [S.l.]: Syco Music, 2009.

MLA (8th ed.) Citation

OneRepublic (Musical group) and Leona Lewis. Echo. Syco Music, 2009.

Warning: These citations may not always be 100% accurate.