APA (7th ed.) Zitazioa
Ortberg, J. (2001). If you want to walk on water, you've got to get out of the boat. Zondervan Pub. House.
Chicago Style (17th ed.) Zitazioa
Ortberg, John. If You Want to Walk on Water, You've Got to Get Out of the Boat. Grand Rapids, Mich: Zondervan Pub. House, 2001.
MLA (9th ed.) Zitazioa
Ortberg, John. If You Want to Walk on Water, You've Got to Get Out of the Boat. Zondervan Pub. House, 2001.
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