Ryburn, R. J. <br/><br/>
Talasea-Gasmata, New Britain  sheet SB/56-5 & SB/56-9 international index 
compiled by R. J. Ryburn 
 - Canberra  Australian Government Publishing Service  1975 
 - 26 p.  maps 
 - 1:250,000 geological series - explanatory notes .
<br/><br/> At head of title : Dept. of Lands, Surveys and Mines, Papua New Guinea, Geological Survey of Papua New Guinea 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Papua New Guinea--Hoskins Region