Marvin, Carolyn. <br/><br/>
When old technologies were new :  Thinking about electric communication in the late nineteenth century / 
Carolyn Marvin. 
 - New York :  Oxford University Press,  1988. 
 - 269 p., [14] p. of plates :  ill., facsims. ;.  21 cm 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 237-265. 
<br/><br/><label>ISBN: </label>0195044681 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--History--19th century.<br/>Electric engineering--History--19th century.