APA (7th ed.) Citation
Williams, S. T., Gabriel, R. H., Henderson, W. J., & Morey, C. R. (1926). The American spirit in letters (Indepence ed.). New Haven, Yale University Press.
Chicago Style (17th ed.) Citation
Williams, Stanley Thomas, Ralph Henry Gabriel, William James Henderson, and Charles Rufus Morey. The American Spirit in Letters. Indepence ed. Toronto: New Haven, Yale University Press, 1926.
MLA (9th ed.) Citation
Williams, Stanley Thomas, et al. The American Spirit in Letters. Indepence ed. New Haven, Yale University Press, 1926.
Warning: These citations may not always be 100% accurate.