Humphreys, G. S. <br/><br/>
The environment and soils of Chimbu Province, Papua New Guinea, with particular reference to soil erosion / 
G.S. Humphreys. 
 - Port Moresby :  Dept. of Primary Industry,  1984. 
 - xii, 109p. :  3 maps. 
 - Research report of the Simbu Land Use Project ;  v. 2 .
 - Research bulletin /  no. 35 .
 - Research bulletin (Papua New Guinea. Dept. of Primary Industry) ;  no. 35 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil erosion--Papua New Guinea--Simbu Province.<br/>Ecology--Papua New Guinea--Simbu Province.<br/>Soils--Papua New Guinea--Simbu Province.