APA-referens (7:e uppl.)

Gipe, J. G. (1994). Long-term changes of income inequality in Papua New Guinea: Theory, evidence and explanations. University of.

Chicago-referens (17:e uppl.)

Gipe, Jaungere Gomi. Long-term Changes of Income Inequality in Papua New Guinea: Theory, Evidence and Explanations. Papua New Guinea: University of, 1994.

MLA-referens (9:e uppl.)

Gipe, Jaungere Gomi. Long-term Changes of Income Inequality in Papua New Guinea: Theory, Evidence and Explanations. University of, 1994.