Spangenberg Karl R <br/><br/>
Fundamentals of electron devices. 
Spangenberg Karl R 
 -  1957 
<br/><br/><label>Standard No.: </label>130193 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65, J7