Siegel, P., & Alwang, J. R. (2004). Export commodity production and broad-based rural development: Coffee and cocoa in the Dominican Republic. World Bank.
Chicago-referens (17:e uppl.)Siegel, Paul, och Jeffrey R. Alwang. Export Commodity Production and Broad-based Rural Development: Coffee and Cocoa in the Dominican Republic. [Washington, D.C: World Bank, 2004.
MLA-referens (9:e uppl.)Siegel, Paul, och Jeffrey R. Alwang. Export Commodity Production and Broad-based Rural Development: Coffee and Cocoa in the Dominican Republic. World Bank, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.