APA (7th ed.) Citation

Douglass, S. (2003). Threshold (1st U.S. ed.). Tor.

Chicago Style (17th ed.) Citation

Douglass, Sara. Threshold. 1st U.S. ed. New York: Tor, 2003.

MLA (9th ed.) Citation

Douglass, Sara. Threshold. 1st U.S. ed. Tor, 2003.