APA (7th ed.) Citation

Thomas, L., Smart, T., & Gibbon, D. (1980). Yellowstone. Mayflower Books.

Chicago Style (17th ed.) Citation

Thomas, Lee, Ted Smart, and David Gibbon. Yellowstone. New York: Mayflower Books, 1980.

MLA (9th ed.) Citation

Thomas, Lee, et al. Yellowstone. Mayflower Books, 1980.