Bell, R.I. <br/><br/>
Nagative electron affinity devices/ 
R.L. Bell 
 - Oxford:  Clarendon Press,  1973 
 - 148 p.;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> £ 4.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negative resistance devices<br/>Electronic apparatus and  appliances
<br/><br/><label>Dewey Class. No.: </label>621.3815