Clark, M. M. (1989). Understanding research in early childhood education. Gordon and Breach.
Citace podle Chicago (17th ed.)Clark, Margaret Macdonald. Understanding Research in Early Childhood Education. New York: Gordon and Breach, 1989.
Citace podle MLA (9th ed.)Clark, Margaret Macdonald. Understanding Research in Early Childhood Education. Gordon and Breach, 1989.
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