APA (7th ed.) Citation

U2 (Musical group), Lanois, D., & Eno, B. (1991). Achtung baby. Island.

Chicago Style (17th ed.) Citation

U2 (Musical group), Daniel Lanois, and Brian Eno. Achtung Baby. N[ew] Y[ork], NY: Island, 1991.

MLA (8th ed.) Citation

U2 (Musical group), et al. Achtung Baby. Island, 1991.

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