Brooks, Clifford W ; Borish, Irvin M <br/><br/>
System for ophthalmic dispensing 3rd ed. 

 - Butterworth-Heinemann  Missouri  2007 
 - xx,665 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>617.7