Columbia subject headings:
Harvard subject headings:
Agriculture and state--Papua New Guinea.
Agriculture--Economic aspects--Papua New Guinea.
Papua New Guinea--Economic conditions--1975-
Papua New Guinea--Economic policy.
Princeton subject headings:
Agricultural development projects--Papua New Guinea.
Agriculture and state--Papua New Guinea.
Agriculture--Economic aspects--Papua New Guinea.
Papua New Guinea--Economic conditions--1975-.
Papua New Guinea--Economic policy.