APA (7th ed.) Citation

Ellis, M., Pound, L., & Spohn, G. W. (1939). A college book of American literature. American Book Company.

Chicago Style (17th ed.) Citation

Ellis, Milton, Louise Pound, and George Weida Spohn. A College Book of American Literature. New York: American Book Company, 1939.

MLA (9th ed.) Citation

Ellis, Milton, et al. A College Book of American Literature. American Book Company, 1939.