Macewan, J. M. <br/><br/>
Subsistence agriculture / 
J. M. Macewan. 
 - [Port Moresby] :  Dept. of Primary Industry,  [1978]. 
 - 56p. :  ill., maps. 
 - Agriculture in the economy : .
<br/><br/> Cover title. 
<br/><br/><label>ISBN: </label>0724705597 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Papua New Guinea.<br/>Agriculture--Developing countries.