APA (7th ed.) Citation

Wheeler, J. D. Billie Bradley and Her Classmates; Or, The Secret of the Locked Tower.

Chicago Style (17th ed.) Citation

Wheeler, Janet D. Billie Bradley and Her Classmates; Or, The Secret of the Locked Tower.

MLA (9th ed.) Citation

Wheeler, Janet D. Billie Bradley and Her Classmates; Or, The Secret of the Locked Tower.

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