APA (7th ed.) Citation

Sigur Rós (Musical group), Sigur Rós (Musical group), & Amiina (Musical group). (2002). [Parentheses]. Fat Cat Records.

Chicago Style (17th ed.) Citation

Sigur Rós (Musical group), Sigur Rós (Musical group), and Amiina (Musical group). [Parentheses]. Santa Monica, Calif.: Fat Cat Records, 2002.

MLA (9th ed.) Citation

Sigur Rós (Musical group), et al. [Parentheses]. Fat Cat Records, 2002.