Tpt & Research Laboratry. <br/><br/>
Road notice 31  A guide to the structural design of bitumen - surfaced roads in tropical and sub - tropical countries. 
Tpt & Research Laboratry. 
 - 3rd ed. 
 - London.  Her Majesty's Stationery Office.  1977. 
 - 26 p.: 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>625.85  / TRA