APA (7th ed.) Citation

Keller, H., & Henning, J. (1951). The heart of Mary. Clonmore and Reynolds.

Chicago Style (17th ed.) Citation

Keller, Heinrich, and John Henning. The Heart of Mary. Dublin: Clonmore and Reynolds, 1951.

MLA (9th ed.) Citation

Keller, Heinrich, and John Henning. The Heart of Mary. Clonmore and Reynolds, 1951.