Dennis, J. (2005). Leading with Billy Graham: The leadership principles and life of T. W. Wilson. Grand Rapids, MI : Baker Books.
Cita Chicago (17th ed.)Dennis, Jay. Leading with Billy Graham: The Leadership Principles and Life of T. W. Wilson. Grand Rapids, MI : Baker Books, 2005.
Cita MLA (9th ed.)Dennis, Jay. Leading with Billy Graham: The Leadership Principles and Life of T. W. Wilson. Grand Rapids, MI : Baker Books, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.