Sampson, Roy J. <br/><br/>
Domestic transportation :  practice, theory, and policy / 
by Roy J. Sampson, Martin T. Farris, David L. Shrock. 
 - 6th ed. 
 - Boston, Mass. :  Houghton Mifflin,  c1990. 
 - xiv, 747 p. 
<br/><br/> Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0395433630 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transportation--United States.<br/>Freight and freightage--United States.