Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
Chicago-čujuhus (17. p.)Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
MLA-čujuhus (9. p.)Boobbyer. The Spiritual Vision of Frank Buchman. Penn State University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.