Wellman, F. L. (1961). Coffee: Botany, cultivation and utilization. Leonard Hill.
Cita Chicago Style (17a ed.)Wellman, Frederick L. Coffee: Botany, Cultivation and Utilization. London: Leonard Hill, 1961.
Cita MLA (8a ed.)Wellman, Frederick L. Coffee: Botany, Cultivation and Utilization. Leonard Hill, 1961.
Precaución: Estas citas no son 100% exactas.