LOPER (Orla E). <br/><br/>
Direct current fundamenta.ls. 

 - Bombay  D B Taraporevala Sons & Co Pvt Ltd.,  1969 
 - v,336,A-10,viii 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Direct Current
<br/><br/><label>Dewey Class. No.: </label>537.61 LOPD