APA (7th ed.) Citation

Adams, C. F., Adams, H., & Walker, F. A. (1967). Chapters of Erie, and other essays. A.M. Kelley.

Chicago Style (17th ed.) Citation

Adams, Charles Francis, Henry Adams, and Francis Amasa Walker. Chapters of Erie, and Other Essays. New York: A.M. Kelley, 1967.

MLA (9th ed.) Citation

Adams, Charles Francis, et al. Chapters of Erie, and Other Essays. A.M. Kelley, 1967.