Highway statistics 1990. 

 - 46th ed. 
 - Washington  Federal Highway Administration  1991. 
<br/><br/><label>ISBN: </label>0160359953  5.25 
<br/><br/><label>LCCN: </label>doc92000414  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads--Statistics.--United States<br/>Transportation, Automotive--Statistics.--United States<br/>Motor fuels.--Taxation--United States.