APA (7th ed.) Citation

Lewis, M., Clark, W., & Bakeless, J. (1964). The journals of Lewis and Clark. New American Library.

Chicago Style (17th ed.) Citation

Lewis, Meriwether, William Clark, and John Bakeless. The Journals of Lewis and Clark. [New York]: New American Library, 1964.

MLA (9th ed.) Citation

Lewis, Meriwether, et al. The Journals of Lewis and Clark. New American Library, 1964.