Sampson, Roy J. <br/><br/>
Domestic transportation :  practice, theory and policy / 
Roy J. Sampson, Martin T. Farris 
 - 4th ed. 
 - Boston :  Houghton Mifflin,  1979 
 - 518 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>0395267935 
<br/><br/><label>LCCN: </label>78-69576 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States<br/>Freight and freightage--United States