APA-viite (7. p.)
Hybels, B. (1988). Too Busy not to Pray: Slowing down to be with God. Inter-Varsity.
Chicago-viite (17. p.)
Hybels, Bill. Too Busy Not to Pray: Slowing Down to Be with God. Illinois: Inter-Varsity, 1988.
MLA-viite (9. p.)
Hybels, Bill. Too Busy Not to Pray: Slowing Down to Be with God. Inter-Varsity, 1988.
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