APA (7th ed.) Citation

Twain, M. (1899). Pudd'nhead Wilson and those extraordinary twins (Author's national ed.). Harper.

Chicago Style (17th ed.) Citation

Twain, Mark. Pudd'nhead Wilson and Those Extraordinary Twins. Author's national ed. New York u.a: Harper, 1899.

MLA (9th ed.) Citation

Twain, Mark. Pudd'nhead Wilson and Those Extraordinary Twins. Author's national ed. Harper, 1899.