APA (7th ed.) Citation

Estelle, Lewis, L., Nash, K., Adele, Cat Power, Aguilera, C., . . . Bat for Lashes. (2008). 26 first class songs from Amy -- [et al]: [piano, vocal, guitar]. Wise.

Chicago Style (17th ed.) Citation

Estelle, et al. 26 First Class Songs from Amy -- [et Al]: [piano, Vocal, Guitar]. London ; New York: Wise, 2008.

MLA (9th ed.) Citation

Estelle, et al. 26 First Class Songs from Amy -- [et Al]: [piano, Vocal, Guitar]. Wise, 2008.