APA (7th ed.) Citation

Mitchell, B., & Mitchell, H. (1991). The wizard of sound: A story about Thomas Edison. Carolrhoda Books.

Chicago Style (17th ed.) Citation

Mitchell, Barbara, and Hetty Mitchell. The Wizard of Sound: A Story About Thomas Edison. Minneapolis: Carolrhoda Books, 1991.

MLA (9th ed.) Citation

Mitchell, Barbara, and Hetty Mitchell. The Wizard of Sound: A Story About Thomas Edison. Carolrhoda Books, 1991.