APA-viite (7. p.)
Kail, R. V. (2012). Children and their development (6th ed.). Pearson.
Chicago-viite (17. p.)
Kail, Robert V. Children and Their Development. 6th ed. Boston: Pearson, 2012.
MLA-viite (9. p.)
Kail, Robert V. Children and Their Development. 6th ed. Pearson, 2012.
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