APA (7th ed.) Zitazioa
Jones, T. K. (1998). 21 days to a better quiet time with God: A proven plan for beginning new habits. Zondervan Pub. House.
Chicago Style (17th ed.) Zitazioa
Jones, Timothy K. 21 Days to a Better Quiet Time with God: A Proven Plan for Beginning New Habits. Grand Rapids, Mich.: Zondervan Pub. House, 1998.
MLA (9th ed.) Zitazioa
Jones, Timothy K. 21 Days to a Better Quiet Time with God: A Proven Plan for Beginning New Habits. Zondervan Pub. House, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.