Mitchum, Robert <br/><br/>
Expanding America  [videorecording] 

 - Washington, DC :  PBS Video,  1987 
 - 1 videocassette (VHS) (60 min.) :  sd., col. ;  1/2 in. 
 - The entrepreneurs [videorecording]  an American adventure ;  no.3 .
<br/><br/> Copy available in DVD format 
<br/><br/> Covers the exploration and development of transportation and mechanization in American society. Discusses the question of wether the discovery and exploration of the American continent has contributed to our predisposition for inventing things 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportaion--History--United States<br/>Mechanization--History--United States
<br/><br/><label>Subjects--Geographic Terms: </label><br/>America--Discovery and exploration