Sheldon, Samuel,  1862-1920. <br/><br/>
Electric traction and transmission engineering / 
by Samuel Sheldon and Erich Hausmann. 
 - New York :  Van Nostrand,  1911. 
 - x, 307 p.  illus., diagrs.  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MAQUINAS ELECTRICAS
<br/><br/><label>Universal Decimal Class. No.: </label>621.313