APA-referens (7:e uppl.)
Strobel, L., & Hybels, B. (1993). Inside the mind of unchurched Harry & Mary: How to reach friends and family who avoid God and the church. Zondervan Publishing house.
Chicago-referens (17:e uppl.)
Strobel, Lee, och Bill Hybels. Inside the Mind of Unchurched Harry & Mary: How to Reach Friends and Family Who Avoid God and the Church. Michigan: Zondervan Publishing house, 1993.
MLA-referens (9:e uppl.)
Strobel, Lee, och Bill Hybels. Inside the Mind of Unchurched Harry & Mary: How to Reach Friends and Family Who Avoid God and the Church. Zondervan Publishing house, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.