Papua New Guinea University of Technology & Adams, R. (1977). Socio-economic change - Papua New Guinea: Student research papers. University of Technology.
Lua i Stíl Chicago (17ú heag.)Papua New Guinea University of Technology agus R. Adams. Socio-economic Change - Papua New Guinea: Student Research Papers. Lae: University of Technology, 1977.
Lua MLA (9ú heag.)Papua New Guinea University of Technology agus R. Adams. Socio-economic Change - Papua New Guinea: Student Research Papers. University of Technology, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.