Cita APA (7th ed.)
Bierle, D. A. (1992). Surprised by faith. H.I.S. Ministries.
Cita Chicago (17th ed.)
Bierle, Donald A. Surprised by Faith. Minnesota: H.I.S. Ministries, 1992.
Cita MLA (9th ed.)
Bierle, Donald A. Surprised by Faith. H.I.S. Ministries, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.