APA-referens (7:e uppl.)

Ingham, B. (1981). Tropical exports and economic development: New perspectives on producer response in three low-income countries. Macmillan.

Chicago-referens (17:e uppl.)

Ingham, Barbara. Tropical Exports and Economic Development: New Perspectives on Producer Response in Three Low-income Countries. London: Macmillan, 1981.

MLA-referens (8:e uppl.)

Ingham, Barbara. Tropical Exports and Economic Development: New Perspectives on Producer Response in Three Low-income Countries. Macmillan, 1981.