Lean, G. (1985). Frank Buchman: A life. Constable.
Cita Chicago (17th ed.)Lean, Garth. Frank Buchman: A Life. London: Constable, 1985.
Cita MLA (9th ed.)Lean, Garth. Frank Buchman: A Life. Constable, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.