APA (7th ed.) Citation

Thomas, a. K. (1925). Following of Christ in four books (New edition.). Catholic Publications Press.

Chicago Style (17th ed.) Citation

Thomas, a Kempis. Following of Christ in Four Books. New edition. New York: Catholic Publications Press, 1925.

MLA (8th ed.) Citation

Thomas, a Kempis. Following of Christ in Four Books. New edition. Catholic Publications Press, 1925.