APA (7th ed.) Citation

Discovery Channel School, Entrex Software, QuickTime, & World Book. (2004). Bacteria [computer file]. Discovery Communications.

Chicago Style (17th ed.) Citation

Discovery Channel School, Entrex Software, QuickTime, and World Book. Bacteria [computer File]. [U.S.A.]: Discovery Communications, 2004.

MLA (9th ed.) Citation

Discovery Channel School, et al. Bacteria [computer File]. Discovery Communications, 2004.