APA (7th ed.) Citation

University of Papua New Guinea & Guthrie, G. (1980). Day high schools. Educational Research Unit, University of Papua New Guinea.

Chicago Style (17th ed.) Citation

University of Papua New Guinea and Gerard Guthrie. Day High Schools. [Port Moresby]: Educational Research Unit, University of Papua New Guinea, 1980.

MLA (9th ed.) Citation

University of Papua New Guinea and Gerard Guthrie. Day High Schools. Educational Research Unit, University of Papua New Guinea, 1980.