Columbia subject headings:
Governors--Papua New Guinea--Biography.
Hahl, Albert, 1868-
Papua New Guinea--History.
Harvard subject headings:
Governors--Papua New Guinea--Biography.
Hahl, Albert, 1868-
Papua New Guinea--History.
Princeton subject headings:
Governors--Papua New Guinea--Biography.
Hahl, Albert, 1868- .
Papua New Guinea--History.