Flexner, James Thomas. <br/><br/>
Steamboats come true :  American inventors in action / 
James Thomas Flexner. 
 - New York :  Viking Press,  c 1944. 
 - x, 406 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>319  319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Steamboats--History.
<br/><br/><label>Dewey Class. No.: </label>623.8 / F639s