Jacobson, G. <br/><br/>
Hydrogeology of the Kwikila-Rigo area, Central District, Papua / 
by G. Jacobson 
 - [Port Moresby] :  Geological Survey of Papua New Guinea,  1971 
 - [20]leaves :  2 maps 
 - Note on investigation ;  71-023 .
<br/><br/>Investigation no. 71410 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply, Rural--Papua New Guinea--Central Province<br/>Groundwater--papua New Guinea--Central Province