APA

Twain M., . (1984). The innocents abroad. Roughing it. New York: Literary Classics of the United States.

Chicago

Twain M, . 1984. The innocents abroad. Roughing it. New York: Literary Classics of the United States.

Harvard

Twain M., . (1984). The innocents abroad. Roughing it. New York: Literary Classics of the United States.

MLA

Twain M, . The innocents abroad. Roughing it. New York: Literary Classics of the United States. 1984.