Fleming, E., & Antony, G. (1993). The coffee economy in Papua New Guinea: Analysis and prospects. Institute of National Affairs.
Lua i Stíl Chicago (17ú heag.)Fleming, Euan, agus George Antony. The Coffee Economy in Papua New Guinea: Analysis and Prospects. Port Moresby: Institute of National Affairs, 1993.
Lua MLA (9ú heag.)Fleming, Euan, agus George Antony. The Coffee Economy in Papua New Guinea: Analysis and Prospects. Institute of National Affairs, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.