Columbia subject headings:
Harvard subject headings:
Agricultural development projects--Papua New Guinea--Congresses.
Economic development projects--Papua New Guinea--Congresses.
Papua New Guinea--Commerce--Congresses.
Papua New Guinea--Economic conditions--1975---Congresses.
Papua New Guinea--Economic conditions--Congresses.
Papua New Guinea--Economic policy--Congresses.
Princeton subject headings:
Agricultural development projects--Papua New Guinea--Congresses.
Economic development projects--Papua New Guinea--Congresses.
Papua New Guinea--Commerce--Congresses.
Papua New Guinea--Economic conditions--1975---Congresses.
Papua New Guinea--Economic policy--Congresses.