Graff, Heinz <br/><br/>
Electronikam (m) / 
Graff, Heinz 
 -  Kerala Bhasha Institute, TVPM,  1900 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics; Physics
<br/><br/><label>Dewey Class. No.: </label>537.5 GRA-E