Hybels, B. (1988). Making life work: Putting God's wisdom into action. Inter-Varsity Press.
Chicago Style (17th ed.) ZitazioaHybels, Bill. Making Life Work: Putting God's Wisdom into Action. Leicester, England: Inter-Varsity Press, 1988.
MLA (9th ed.) ZitazioaHybels, Bill. Making Life Work: Putting God's Wisdom into Action. Inter-Varsity Press, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.