Kail, R. V. (2001). Children and their development: Test item file (2nd ed.). Prentice Hall.
Chicago Style aipamenaKail, Robert V. Children and Their Development: Test Item File. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 2001.
MLA aipamenaKail, Robert V. Children and Their Development: Test Item File. 2nd ed. Prentice Hall, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.