APA (7th ed.) Citation

Bulla, C. R. (1956). The sword in the tree. Crowell.

Chicago Style (17th ed.) Citation

Bulla, Clyde Robert. The Sword in the Tree. New York: Crowell, 1956.

MLA (9th ed.) Citation

Bulla, Clyde Robert. The Sword in the Tree. Crowell, 1956.

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