APA (7th ed.) Citation

Watson, T. A. (2003). The Birth of the Telephone. Project Gutenberg.

Chicago Style (17th ed.) Citation

Watson, Thomas Augustus. The Birth of the Telephone. Project Gutenberg, 2003.

MLA (9th ed.) Citation

Watson, Thomas Augustus. The Birth of the Telephone. Project Gutenberg, 2003.

Warning: These citations may not always be 100% accurate.