Cita APA

Riddle, G. 1. (1908). A Modern reader and speaker. New York, New York: Duffield.

Citación estilo Chicago

Riddle, George 1851-1910. A Modern Reader and Speaker. New York, New York: Duffield, 1908.

Cita MLA

Riddle, George 1851-1910. A Modern Reader and Speaker. New York, New York: Duffield, 1908.