Feasibility study for the drainage of the Wahgi Valley swamp :  integrated report / 
Wilton & Bell, Dobbie & Partners [and] E.I.U. (Aust.) Pty Ltd. 
 - Port Moresby :  Department of Agriculture, Stock & Fisheries,  1972. 
 - iv, [125 leaves] :  ill., maps + 2 fold maps ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drainage--Papua New Guinea--Western Highlands Province.<br/>Agricultural engineering--Papua New Guinea--Western Highlands Province.