(1965). The Doubleday picturial library of growth of ideas knowledge thought imagination. Doubleday r Company.
Chicago-viite (17. p.)The Doubleday Picturial Library of Growth of Ideas Knowledge Thought Imagination. Doubleday r Company, 1965.
MLA-viite (8. p.)The Doubleday Picturial Library of Growth of Ideas Knowledge Thought Imagination. Doubleday r Company, 1965.
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