Downes, M. C. (1971). Regional situation report- Papua New Guinea ; Management of the crocodile industry in Papua New Guinea.
Lua i Stíl Chicago (17ú heag.)Downes, M. C. Regional Situation Report- Papua New Guinea ; Management of the Crocodile Industry in Papua New Guinea. 1971.
Lua MLA (9ú heag.)Downes, M. C. Regional Situation Report- Papua New Guinea ; Management of the Crocodile Industry in Papua New Guinea. 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.