Sampson, Roy J. <br/><br/>
Domestic transportation  practice, theory, and policy 
Roy J. Sampson, Martin T. Farris. 
 - 4th ed. 
 - Boston  Houghton Mifflin  c1979. 
 - xiv, 518 p.  ill.  25 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0395267935 
<br/><br/><label>LCCN: </label>78069576  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States.<br/>Freight and freightage--United States.
<br/><br/><label>LC Class. No.: </label>HE206.2  / .S25 1979 
<br/><br/><label>Dewey Class. No.: </label>380.5/0973