Guillemin Ernst A <br/><br/>
Communication networks 

 -  1935 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>74975 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65,8(B):7, G5