APA (7th ed.) Citation

Twain, M. (1879). The innocents abroad, or, The new Pilgrim's progress / by Mark Twain (Authorized ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Twain, Mark. The Innocents Abroad, or, The New Pilgrim's Progress / by Mark Twain. Authorized ed. Leipzig : B. Tauchnitz: [publisher not identified], 1879.

MLA (9th ed.) Citation

Twain, Mark. The Innocents Abroad, or, The New Pilgrim's Progress / by Mark Twain. Authorized ed. [publisher not identified], 1879.