McCallum, M., & Hamblin, J. (1978). God's incredible plan. Fleming H. Revell.
Lua i Stíl Chicago (17ú heag.)McCallum, Martha, agus Jane Hamblin. God's Incredible Plan. New Jersey: Fleming H. Revell, 1978.
Lua MLA (9ú heag.)McCallum, Martha, agus Jane Hamblin. God's Incredible Plan. Fleming H. Revell, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.