Cartledge, I. V. (1978). A history of the coffee industry in Papua New Guinea. Papua New Guinea Marketing Board (Coffee Industry Board).
Chicago-Zitierstil (17. Ausg.)Cartledge, Ian V. A History of the Coffee Industry in Papua New Guinea. [Boroko, P.N.G.]: Papua New Guinea Marketing Board (Coffee Industry Board), 1978.
MLA-Zitierstil (8. Ausg.)Cartledge, Ian V. A History of the Coffee Industry in Papua New Guinea. Papua New Guinea Marketing Board (Coffee Industry Board), 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.