Yancey, P., & Quinn, B. (1998). What's So Amazing About Grace?: Study Guide. Zondervan.
Chicago Style (17. basım) AtıfYancey, Philip, ve Brenda Quinn. What's So Amazing About Grace?: Study Guide. Grand Rapids, MI: Zondervan, 1998.
MLA (9th ed.) AtıfYancey, Philip, ve Brenda Quinn. What's So Amazing About Grace?: Study Guide. Zondervan, 1998.
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