APA (7th ed.) Citation

Media Working Group (Firm), Donohue, J., & Johnson, F. (2006). Coal black voices. Media Working Group.

Chicago Style (17th ed.) Citation

Media Working Group (Firm), Jean Donohue, and Fred Johnson. Coal Black Voices. [Covington, Ky.]: Media Working Group, 2006.

MLA (8th ed.) Citation

Media Working Group (Firm), et al. Coal Black Voices. Media Working Group, 2006.