APA (7th ed.) Citation

O'Donnell, M., & Salvatori, M. (2002). Halo: Original soundtrack. Microsoft Corp..

Chicago Style (17th ed.) Citation

O'Donnell, Martin, and Michael Salvatori. Halo: Original Soundtrack. [Redmond, Wash.]: Microsoft Corp., 2002.

MLA (9th ed.) Citation

O'Donnell, Martin, and Michael Salvatori. Halo: Original Soundtrack. Microsoft Corp., 2002.