Willard, D. (1991). The spirit of the disciplines: Understanding how God changes lives. Harper.
Chicago-čujuhus (17. p.)Willard, Dallas. The Spirit of the Disciplines: Understanding How God Changes Lives. San Francisco: Harper, 1991.
MLA-čujuhus (9. p.)Willard, Dallas. The Spirit of the Disciplines: Understanding How God Changes Lives. Harper, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.