Sampson, Roy J. <br/><br/>
Domestic transportation :  practice, theory and policy / 
Roy J. Sampson, Martin T. Farris, David L. Schrock 
 - 6th. ed. 
 - Boston :  Houghton Mifflin,  1990 
 - 747 p. :  ill. ;  24 cm. 
<br/><br/> Includes instructor's manual 
<br/><br/>Includes bibliographies 
<br/><br/><label>ISBN: </label>0395433630 
<br/><br/><label>LCCN: </label>89-80960 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States<br/>Freight and freightage--United States