APA (7th ed.) Citation

Twain, M. (1998). Mark Twain: Four complete novels ([New ed.].). Portland House.

Chicago Style (17th ed.) Citation

Twain, Mark. Mark Twain: Four Complete Novels. [New ed.]. New York: Portland House, 1998.

MLA (9th ed.) Citation

Twain, Mark. Mark Twain: Four Complete Novels. [New ed.]. Portland House, 1998.

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