APA (7th ed.) Citation

Snyder, Z. K. (2004). The Unseen. Delacorte Press.

Chicago Style (17th ed.) Citation

Snyder, Zilpha Keatley. The Unseen. New York: Delacorte Press, 2004.

MLA (9th ed.) Citation

Snyder, Zilpha Keatley. The Unseen. Delacorte Press, 2004.