Cita APA (7a ed.)

Abbott, J., & Roberts, W. (1852). Rodolphus: A Franconia story. Harper & Bros..

Cita Chicago Style (17a ed.)

Abbott, Jacob, y William Roberts. Rodolphus: A Franconia Story. New York: Harper & Bros., 1852.

Cita MLA (8a ed.)

Abbott, Jacob, y William Roberts. Rodolphus: A Franconia Story. Harper & Bros., 1852.