Kail, R. V. (1998). Children and their development. Prentice Hall.
Chicago Style aipamenaKail, Robert V. Children and Their Development. Upper Saddle River, N.J: Prentice Hall, 1998.
MLA aipamenaKail, Robert V. Children and Their Development. Prentice Hall, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.