Hardwicke, W. Wright <br/><br/>
Sight-testing made easy/ 
W. Wright Hardwicke 
 - 4th ed. 
 - London:  J and A Churchill,  1920 
 - 79 p.;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vision--Testing<br/>Ophthalmology<br/>Astigmatism<br/>Myopia<br/>Eye--Accomodation and refraction
<br/><br/><label>Dewey Class. No.: </label>617.755