Παραπομπή APA
Kail, R. V. (2001). Children and their development (2nd ed.). Upper Saddle River: Prentice Hall.
Παραπομπή Chicago StyleKail, Robert V. Children and Their Development. 2nd ed. Upper Saddle River: Prentice Hall, 2001.
Παραπομπή MLAKail, Robert V. Children and Their Development. 2nd ed. Upper Saddle River: Prentice Hall, 2001.
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