Ward, Marion W. <br/><br/>
The Rigo Road :  a study of the economic effects of new road construction / 
Marion W. Ward. 
 - Canberra ;  Port Moresby :  New Guinea Research Unit, ANU,  1970. 
 - xii, 102 p. :  maps, tables, graphs ;  26 cm. 
 - New Guinea research bulletin ;  no. 33 .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 92-93. 
<br/><br/><label>LCCN: </label>73-107383 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roads--Economic aspects--Papua New Guinea--Central Province.<br/>Roads--Economic aspects.--Papua New Guinea