Papua New Guinea. Department of Social Development and Home Affairs. (1972). Social science research 1971. Department of Social Development and Home Affairs.
Chicago-viite (17. p.)Papua New Guinea. Department of Social Development and Home Affairs. Social Science Research 1971. Port Moresby: Department of Social Development and Home Affairs, 1972.
MLA-viite (9. p.)Papua New Guinea. Department of Social Development and Home Affairs. Social Science Research 1971. Department of Social Development and Home Affairs, 1972.
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