APA (7th ed.) Citation

Derum, J. P. (1960). Apostle in a top hat: The life of Frederic Ozanam. Hanover House.

Chicago Style (17th ed.) Citation

Derum, James Patrick. Apostle in a Top Hat: The Life of Frederic Ozanam. Garden City, N.Y.: Hanover House, 1960.

MLA (8th ed.) Citation

Derum, James Patrick. Apostle in a Top Hat: The Life of Frederic Ozanam. Hanover House, 1960.