Subsistence agriculture improvement :  manual for the humid tropics / 
edited by Friedhelm Goeltenboth; [contributing authors V.E. Dalpadado... [et al.]. ; illustrated by Sally Shaw]. 
 - Wau, Papua New Guinea :  Wau Ecology Institute,  c1985. 
 - 228 p. :  ill. 
 - Wau Ecology Institute handbook ;  no 10 .
<br/><br/><label>ISBN: </label>9980730013 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Papua New Guinea.<br/>Subsistence agriculture--Papua New Guinea.