Heinsen, A C <br/><br/>
If I don't know, it must not be so!  [electronic resource] 

 -  Journal of the American Optometric Association  Mar 1987 
 - 163-4 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>0003-0244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child<br/>Humans<br/>Learning Disabilities--etiology<br/>Vision Disorders--complications