Wells, Gordon Ronald. <br/><br/>
Highway planning techniques :  the balance of cost and benefit / 
G. R. Wells. 
 - London :  Griffin,  1971. 
 - ix, 149 p. :  ill. 
<br/><br/><label>ISBN: </label>0852641966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads--Economic aspects.<br/>Roads--Costs.