Columbia subject headings:
Lumber trade--Papua New Guinea--Madang Province.
Lumbermen--Papua New Guinea--Madang Province.
Harvard subject headings:
Forests and forestry--Papua New Guinea.
Natural resources--Papua New Guinea.
Papua New Guinea--Economic conditions.
Rain forests--Papua New Guinea.
Princeton subject headings:
Lumber trade--Papua New Guinea--Madang Province.
Lumbermen--Papua New Guinea--Madang Province.