Reinecke, Robert D.,   1929-. <br/><br/>
Refraction  a programmed text / 
By Robert D. Reinecke and Robert J. Herm. 
 - 2nd ed. 
 - Norwalk, Conn. :  Appleton-Century-Crofts,  1976. 
 - 365 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0838582990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eye--Accomodation and refraction--Programmed instruction.<br/>Refraction, Ocular--Programmed texts.