Papua New Guinea University of Technology. Matheson Library & Maniha, N. S. (1985). Coffee in Papua New Guinea: An annotated bibliography. Papua New Guinea University of Technology.
Chicago-viite (17. p.)Papua New Guinea University of Technology. Matheson Library ja Nicks Sasingian Maniha. Coffee in Papua New Guinea: An Annotated Bibliography. Lae: Papua New Guinea University of Technology, 1985.
MLA-viite (9. p.)Papua New Guinea University of Technology. Matheson Library ja Nicks Sasingian Maniha. Coffee in Papua New Guinea: An Annotated Bibliography. Papua New Guinea University of Technology, 1985.
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