APA (7th ed.) Zitazioa

Nielsen, K. E., & Kaye, H. J. (2004). The radical lives of Helen Keller. New York University Press.

Chicago Style (17th ed.) Zitazioa

Nielsen, Kim E., eta Harvey J. Kaye. The Radical Lives of Helen Keller. New York: New York University Press, 2004.

MLA (9th ed.) Zitazioa

Nielsen, Kim E., eta Harvey J. Kaye. The Radical Lives of Helen Keller. New York University Press, 2004.