APA (7th ed.) Citation

Papua New Guinea. (1983). International trade: Commerce teachers guide, grade 10, unit 2. The Dept..

Chicago Style (17th ed.) Citation

Papua New Guinea. International Trade: Commerce Teachers Guide, Grade 10, Unit 2. [Port Moresby]: The Dept., 1983.

MLA (9th ed.) Citation

Papua New Guinea. International Trade: Commerce Teachers Guide, Grade 10, Unit 2. The Dept., 1983.