Kellersberger, J. L. S. (1941). God's ravens. Fleming H. Revell Company.
Lua i Stíl Chicago (17ú heag.)Kellersberger, Julia Lake Skinner. God's Ravens. New York: Fleming H. Revell Company, 1941.
Lua MLA (8ú heag.)Kellersberger, Julia Lake Skinner. God's Ravens. Fleming H. Revell Company, 1941.
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