APA (7th ed.) Citation

Mason, D. E. (1967). Franc C. Laubach, teacher of millions. T. S. Denison.

Chicago Style (17th ed.) Citation

Mason, David E. Franc C. Laubach, Teacher of Millions. Minneapolis: T. S. Denison, 1967.

MLA (9th ed.) Citation

Mason, David E. Franc C. Laubach, Teacher of Millions. T. S. Denison, 1967.