APA (7th ed.) Citation

Syncopated Productions (Firm),$4dst, & Kanopy (Firm),$4dst. (2007). Speaking In Tongues: The History of Language. Syncopated Productions.

Chicago Style (17th ed.) Citation

Syncopated Productions (Firm),$4dst, and Kanopy (Firm),$4dst. Speaking In Tongues: The History of Language. [San Francisco, California, USA]: Syncopated Productions, 2007.

MLA (9th ed.) Citation

Syncopated Productions (Firm),$4dst, and Kanopy (Firm),$4dst. Speaking In Tongues: The History of Language. Syncopated Productions, 2007.