The American railroad in laboratory  a brief digest of research and experimentation, conducted by railroads individually and collectively through the American railway association in the interest of constant improvement of their facilities and service 
wih an introduction and historical chapter by Edward Hungerford. 
 - Washington, D. C.  Chicago, Ill. [etc.]  American railway association  [c1933] 
 - 544 p.  incl. front., illus. 
<br/><br/><label>LCCN: </label>33022327  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Railroads