APA (7th ed.) Citation

Cobb, I. S. (1927). Chivalry peak: Illustr. by Herbert M. Stoops. Cosmopolitan Book.

Chicago Style (17th ed.) Citation

Cobb, Irvin S. Chivalry Peak: Illustr. by Herbert M. Stoops. New York: Cosmopolitan Book, 1927.

MLA (9th ed.) Citation

Cobb, Irvin S. Chivalry Peak: Illustr. by Herbert M. Stoops. Cosmopolitan Book, 1927.