National Library Service of Papua New Guinea. School Library Service. (1982). Simplified Dewey classification scheme and subject headings: For high schools in Papua New Guinea. School Library Service, National Library of Papua New Guinea.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)National Library Service of Papua New Guinea. School Library Service. Simplified Dewey Classification Scheme and Subject Headings: For High Schools in Papua New Guinea. [Port Moresby]: School Library Service, National Library of Papua New Guinea, 1982.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)National Library Service of Papua New Guinea. School Library Service. Simplified Dewey Classification Scheme and Subject Headings: For High Schools in Papua New Guinea. School Library Service, National Library of Papua New Guinea, 1982.