Reinecke, Robert D. <br/><br/>
Refraction :  a programmed text / 
Robert D. Reinecke, Robert J. Herm. 
 - 3rd ed. 
 - Norwalk, Conn. :  Appleton-Century-Crofts,  1983. 
 - x, 373 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0838583008 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eye--Accomodation and refraction--Programmed instruction.<br/>Refraction, Ocular--Programmed texts.