Bosworth B <br/><br/>
Codes ciphers and computers 

 - New Jersey   Hayden Book         1982 
 - 259p.  cm. 
<br/><br/><label>Standard No.: </label>37701 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers
<br/><br/><label>Dewey Class. No.: </label>D65,8(B)92B, M2