APA (7th ed.) Citation

Osborne, M. P., Homer, & Howell, T. (2003). The gray-eyed goddess. Hyperion Books for Children.

Chicago Style (17th ed.) Citation

Osborne, Mary Pope, Homer, and Troy Howell. The Gray-eyed Goddess. New York: Hyperion Books for Children, 2003.

MLA (8th ed.) Citation

Osborne, Mary Pope, et al. The Gray-eyed Goddess. Hyperion Books for Children, 2003.

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