Barbier, E. (1989). Economics, natural-resource scarcity and development: Conventional and alternative views. Earthscan Pub.
Chicago-referens (17:e uppl.)Barbier, Edward. Economics, Natural-resource Scarcity and Development: Conventional and Alternative Views. London: Earthscan Pub, 1989.
MLA-referens (9:e uppl.)Barbier, Edward. Economics, Natural-resource Scarcity and Development: Conventional and Alternative Views. Earthscan Pub, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.