Cita APA (7a ed.)
Drechsel, P., & Gyiele, L. (2001). The costs of soil nutrient depletion in Ghana and Sub-Saharan Africa.
Cita Chicago Style (17a ed.)
Drechsel, Pay, y L.A Gyiele. The Costs of Soil Nutrient Depletion in Ghana and Sub-Saharan Africa. 2001.
Cita MLA (9a ed.)
Drechsel, Pay, y L.A Gyiele. The Costs of Soil Nutrient Depletion in Ghana and Sub-Saharan Africa. 2001.
Precaución: Estas citas no son 100% exactas.