APA (7th ed.) Citation

Baum, L. F. (1990). A kidnapped Santa Claus. Project Gutenberg.

Chicago Style (17th ed.) Citation

Baum, L. Frank. A Kidnapped Santa Claus. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Baum, L. Frank. A Kidnapped Santa Claus. Project Gutenberg, 1990.

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