Low-cost  water crossing 

 - Washington:  National Academy of Sciences,  1979. 
 - xxii,176p.   ;ill.  28cm. 
 - Transport Support for Developing Countries: Compendium; 4 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil stabilization<br/>Roads<br/> Developing countries <br/>Subgrades
<br/><br/><label>LC Class. No.: </label>QTO TG155.N37