Covert, Cathy. <br/><br/>
Mental retardation :  a handbook for the primary physician / 
Cathy Covert. 
 - Chicago :  American Medical Association Conference on mental Retardation,  1964 
 - 141 p. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children with mental disabilities.