Williams, V. B. (2001). Amber was brave, Essie was smart: The story of Amber and Essie told here in poems and pictures / by Vera B. Williams. Greenwillow Books.
Chicago-viite (17. p.)Williams, Vera B. Amber Was Brave, Essie Was Smart: The Story of Amber and Essie Told Here in Poems and Pictures / by Vera B. Williams. New York: Greenwillow Books, 2001.
MLA-viite (8. p.)Williams, Vera B. Amber Was Brave, Essie Was Smart: The Story of Amber and Essie Told Here in Poems and Pictures / by Vera B. Williams. Greenwillow Books, 2001.
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