APA (7th ed.) Citation

King, W. L. M. The Secret of Heroism: A Memoir of Henry Albert Harper.

Chicago Style (17th ed.) Citation

King, William Lyon Mackenzie. The Secret of Heroism: A Memoir of Henry Albert Harper.

MLA (9th ed.) Citation

King, William Lyon Mackenzie. The Secret of Heroism: A Memoir of Henry Albert Harper.

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