APA (7th ed.) Citation

Lea, H. (1909). The valor of ignorance. Harper.

Chicago Style (17th ed.) Citation

Lea, Homer. The Valor of Ignorance. New York ; London: Harper, 1909.

MLA (9th ed.) Citation

Lea, Homer. The Valor of Ignorance. Harper, 1909.

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