Lang, Johannes G.  <br/><br/>
The electric field 

 - Berlín :   Siemens,   1974. 
 - 64 p. 
<br/><br/><label>ISBN: </label>3800947080 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CAMPO ELECTRICO
<br/><br/><label>Universal Decimal Class. No.: </label>[371.79] 537.212