APA

Twain M., . (1917). Life on the Mississippi. New York: P.F. Collier.

Chicago

Twain Mark, . 1917. Life on the Mississippi. New York: P.F. Collier.

Harvard

Twain M., . (1917). Life on the Mississippi. New York: P.F. Collier.

MLA

Twain Mark, . Life on the Mississippi. New York: P.F. Collier. 1917.