Cornog, D Y  <br/><br/>
Legibility of alphanumeric characters and other symbols  

 - Washington, D.C:   National Bureau of Standards Miscellaneous,   1967 
 - ii, 460p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prolegomena
<br/><br/><label>Subjects--Index Terms: </label>Alphanumeric  
<br/><br/><label>Universal Decimal Class. No.: </label>R 003.62:51   / K4.2