Dowaliby, Margaret. <br/><br/>
Practical aspects of ophthalmic optics / 
Margaret Dowaliby. 
 - 4th ed. 
 - Boston :  Butterworth-Heinemann,  2001. 
 - 250 p. :  ill. ;  24 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0750671890  RM217.13 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eyeglasses.<br/>Optometry.