Ryer, Elmer Le Roy,  1880- <br/><br/>
Optometric procedure, basic and supplementary/ 
by E. LeRoy Ryer ... and Elmer E. Hotaling ...  Foreword by Howard C. Doane. 
 - [New York:  c1941] 
 - 2 p. l., iii-x, 94 p.:  ill.; 
<br/><br/><label>LCCN: </label>42002468  
<br/><br/><label>Subjects--Topical Terms: </label><br/> Optometry <br/>Optometry Practice
<br/><br/><label>LC Class. No.: </label>RE81  / RYE 1941 
<br/><br/><label>National Library of Medicine Call No.: </label>WW 350  / R993o 1941