Johnson, Emory Richard,  1864- [from old catalog] <br/><br/>
Principles of railroad transportation, 

 - New York,  London,  D. Appleton and company,  1921. 
 - xix, 617 p.  illus. (incl. forms) maps, diagrs.  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Railroads and state--United States.<br/>Railroads--United States. [from old catalog]
<br/><br/><label>LC Class. No.: </label>HE1031  / .J65 1921