Hay, William Walter, <br/><br/>
Railroad engineering. 

 - New York,  Wiley  [1953- 
 - v.  illus.  24cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Railroad engineering.
<br/><br/><label>Dewey Class. No.: </label>625.1  / HAY