APA (7th ed.) Citation

University of Papua New Guinea. Dept. of Extension Studies. (1987). Pre-matriculation basic mathematics: Unit 1 natural numbers. University of Papua New Guinea, Dept. of Extension Studies.

Chicago Style (17th ed.) Citation

University of Papua New Guinea. Dept. of Extension Studies. Pre-matriculation Basic Mathematics: Unit 1 Natural Numbers. Waigani: University of Papua New Guinea, Dept. of Extension Studies, 1987.

MLA (9th ed.) Citation

University of Papua New Guinea. Dept. of Extension Studies. Pre-matriculation Basic Mathematics: Unit 1 Natural Numbers. University of Papua New Guinea, Dept. of Extension Studies, 1987.