APA (7th ed.) Citation

Gordon, E. (1966). Mark Twain. Crowell-Collier Press.

Chicago Style (17th ed.) Citation

Gordon, Edwin. Mark Twain. New York: Crowell-Collier Press, 1966.

MLA (9th ed.) Citation

Gordon, Edwin. Mark Twain. Crowell-Collier Press, 1966.

Warning: These citations may not always be 100% accurate.