Cita APA

Graham Bell, A. Alxander Graham Bell: Inventor of the telephone (First edition.). American Telephone & Telegraph Co..

Citación estilo Chicago

Graham Bell, Alexander. Alxander Graham Bell: Inventor of the Telephone. First edition. [Lugar de publicación no identificado]: American Telephone & Telegraph Co..

Cita MLA

Graham Bell, Alexander. Alxander Graham Bell: Inventor of the Telephone. First edition. American Telephone & Telegraph Co..