Yancey, P., & Quinn, B. (1998). What's So Amazing About Grace?: Study Guide. Zondervan.
Chicago-čujuhus (17. p.)Yancey, Philip, juo Brenda Quinn. What's So Amazing About Grace?: Study Guide. Grand Rapids, MI: Zondervan, 1998.
MLA-čujuhus (9. p.)Yancey, Philip, juo Brenda Quinn. What's So Amazing About Grace?: Study Guide. Zondervan, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.