Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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