Papua New Guinea. Dept. of Education, Jones, S. B., Couchman, K. E., & Wilson, G. P. (1991). Secondary school mathematics: A course for grade 9 students. Dept. of Education.
Chicago Style (17th ed.) CitationPapua New Guinea. Dept. of Education, S. B. Jones, K. E. Couchman, and G. P. Wilson. Secondary School Mathematics: A Course for Grade 9 Students. Papua New Guinea: Dept. of Education, 1991.
MLA (9th ed.) CitationPapua New Guinea. Dept. of Education, et al. Secondary School Mathematics: A Course for Grade 9 Students. Dept. of Education, 1991.
Warning: These citations may not always be 100% accurate.