Lyons.J.L. & Askland.C.L. <br/><br/>
Lyons Encyclopedia Of Valves.(1975). 

 - 1st Ed. 
 -  VNRC  1978 
 - 290p.  22 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>REF
<br/><br/><label>Dewey Class. No.: </label>24E-1041  / LYO