APA (7th ed.) Citation

Evolution Film (Firm), Bullfrog Films, Lundahl, R., & Farmer, G. (2018). Unconquering the last frontier. [Distributed by] Bullfrog Films.

Chicago Style (17th ed.) Citation

Evolution Film (Firm), Bullfrog Films, Robert Lundahl, and Gary Farmer. Unconquering the Last Frontier. [Oley, Pennsylvania]: [Distributed by] Bullfrog Films, 2018.

MLA (9th ed.) Citation

Evolution Film (Firm), et al. Unconquering the Last Frontier. [Distributed by] Bullfrog Films, 2018.