Brook, Robert M. <br/><br/>
Sustainable agriculture :  a review of research in Papua New Guinea up to 1989 / 
Robert M. Brook, Bill Humphrey. 
 - [Kerevat] :  Lowlands Agricultural Experiment Station,  1992. 
 - 33 p. 
 - Lowlands Agricultural Experiment Station.  4/92 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable agriculture--Research.--Papua New Guinea