Παραπομπή σε μορφή APA (7η εκδ.)

STEWART, R. G. (1992). Coffee: The political economiy of in export industry in Papua New Guinea. Westview.

Παραπομπή σε μορφή Chicago (17η εκδ.)

STEWART, Randal G. Coffee: The Political Economiy of in Export Industry in Papua New Guinea. Boulder: Westview, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

STEWART, Randal G. Coffee: The Political Economiy of in Export Industry in Papua New Guinea. Westview, 1992.