Oconnor N., Hermelin Beate <br/><br/>
Speech and thought in severe subnormality  an experimental study 

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 - Oxford  Pergamon press  1963 
 - 122 p.  22 cm. 
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<br/><br/>  Mental Retardation, Mentally Disabled Persons, Speech, Speech Disorders 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Speech Disorders<br/>Speech<br/>Mentally Disabled Persons<br/>Mental Retardation
<br/><br/><label>Dewey Class. No.: </label>WM475  / OCO