APA (7th ed.) Citation

Herrmann, D. (1998). Helen Keller: A life. A. Knopf.

Chicago Style (17th ed.) Citation

Herrmann, Dorothy. Helen Keller: A Life. New York: A. Knopf, 1998.

MLA (8th ed.) Citation

Herrmann, Dorothy. Helen Keller: A Life. A. Knopf, 1998.

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