Hay, William W. <br/><br/>
An Introduction to transportation engineering / 
William W. Hay 
 - London :  John Wiley,  1961 
 - 505 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 9.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Railroads<br/>Transportations
<br/><br/><label>Dewey Class. No.: </label>385.012