Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
Cita Chicago (17th ed.)Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
Cita MLA (8th ed.)Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
Atenció: Aquestes cites poden no estar 100% correctes.