Library of Congress. Children's Book Section, Children's Literature Center (Library of Congress), Educational Materials Laboratory (U.S.), Educational Materials Center (U.S), Haviland, V., & Watt, L. B. Children's books. Library of Congress : [For sale by the Supt. of Docs., U.S. G.P.O..
Παραπομπή σε μορφή Chicago (17η εκδ.)Library of Congress. Children's Book Section, Children's Literature Center (Library of Congress), Educational Materials Laboratory (U.S.), Educational Materials Center (U.S), Virginia Haviland, και Lois B. Watt. Children's Books. Washington: Library of Congress : [For sale by the Supt. of Docs., U.S. G.P.O..
Παραπομπή σε μορφή MLA (8th εκδ.)Library of Congress. Children's Book Section, et al. Children's Books. Library of Congress : [For sale by the Supt. of Docs., U.S. G.P.O..