APA (7th ed.) Citation

Card, O. S. (1999). Ender's shadow (First edition.). TOR, a Tom Doherty Associates Book.

Chicago Style (17th ed.) Citation

Card, Orson Scott. Ender's Shadow. First edition. New York: TOR, a Tom Doherty Associates Book, 1999.

MLA (8th ed.) Citation

Card, Orson Scott. Ender's Shadow. First edition. TOR, a Tom Doherty Associates Book, 1999.