Johnson, Ralph Paine,  1890- <br/><br/>
The steam locomotive,  its theory, operation and economics, including comparisons with Diesel-electric locomotives, 
by Ralph P. Johnson. 
 - New York, N.Y.,  Simmons-Boardman publishing corporation  [1942] 
 - ix, 502 p.  front., illus., tables (1 fold.) diagrs. (part fold.)  24 cm. 
<br/><br/> Diagrams on 4 folded leaves in pocket. 
<br/><br/>Bibliography; p. 480. 
<br/><br/><label>LCCN: </label>42023569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Locomotives.
<br/><br/><label>LC Class. No.: </label>TJ605  / .J6