Hutt, M. L., & Robert, G. G. (1976). The mentally retarded child development education and treatment. Allyn and Bacon.
Chicago-viite (17. p.)Hutt, Max L., ja G. Gibby Robert. The Mentally Retarded Child Development Education and Treatment. Allyn and Bacon, 1976.
MLA-viite (8. p.)Hutt, Max L., ja G. Gibby Robert. The Mentally Retarded Child Development Education and Treatment. Allyn and Bacon, 1976.
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