APA (7th ed.) Citation

Discovery Channel School, Entrex Software, & World Book. (2005). Invertebrate [ computer file]. Discovery Communications.

Chicago Style (17th ed.) Citation

Discovery Channel School, Entrex Software, and World Book. Invertebrate [ Computer File]. [U.S.A.]: Discovery Communications, 2005.

MLA (9th ed.) Citation

Discovery Channel School, et al. Invertebrate [ Computer File]. Discovery Communications, 2005.