Habakkuk, H. J <br/><br/>
American and British technology in the nineteenth century :  the search for labour-saving inventions / 
by H.J. Habakkuk. 
 - Cambridge :  University Press,  1967. 
 - 222 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--History--United States.<br/>Technology--History--Great Britain.<br/>Inventions--History.