APA (7th ed.) Citation

Konigsburg, E. L. (2007). The mysterious edge of the heroic world. Atheneum Books for Young Readers.

Chicago Style (17th ed.) Citation

Konigsburg, E. L. The Mysterious Edge of the Heroic World. New York: Atheneum Books for Young Readers, 2007.

MLA (8th ed.) Citation

Konigsburg, E. L. The Mysterious Edge of the Heroic World. Atheneum Books for Young Readers, 2007.

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