VanCleave, J. P. (1997). Janice VanCleave's play and find out about nature: Easy experiments for young children. Wiley.
Citace podle Chicago (17th ed.)VanCleave, Janice Pratt. Janice VanCleave's Play and Find Out About Nature: Easy Experiments for Young Children. New York: Wiley, 1997.
Citace podle MLA (9th ed.)VanCleave, Janice Pratt. Janice VanCleave's Play and Find Out About Nature: Easy Experiments for Young Children. Wiley, 1997.
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