Kail, R. V. (2001). Children and their development (2nd ed.). Prentice Hall.
Citace podle Chicago (17th ed.)Kail, Robert V. Children and Their Development. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 2001.
Citace podle MLA (9th ed.)Kail, Robert V. Children and Their Development. 2nd ed. Prentice Hall, 2001.
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