Bier, Norman <br/><br/>
Correction of subnormal vision / 
Norman Bier 
 - 2nd ed. 
 - London :  Butterworth,  1970 
 - viii, 287 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography : p. 257-279 
<br/><br/><label>ISBN: </label>0407140018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eyeglasses<br/>Vision disorders