Cita APA

Twain, M. 1., & Twain, M. 1. (1972). The First Meeting with Helen Keller. Caedmon.

Citación estilo Chicago

Twain, Mark 1835-1910, y Mark 1835-1910 Twain. The First Meeting With Helen Keller. Caedmon, 1972.

Cita MLA

Twain, Mark 1835-1910, y Mark 1835-1910 Twain. The First Meeting With Helen Keller. Caedmon, 1972.