Cita APA (7a ed.)
Drechsel, P., Graefe, S., & Fink, M. (2007). Rural-urban food, nutrient and virtual water flows in selected West African cities. International Water Management Institute.
Cita Chicago Style (17a ed.)
Drechsel, Pay, Sophie Graefe, y M. Fink. Rural-urban Food, Nutrient and Virtual Water Flows in Selected West African Cities. International Water Management Institute, 2007.
Cita MLA (9a ed.)
Drechsel, Pay, et al. Rural-urban Food, Nutrient and Virtual Water Flows in Selected West African Cities. International Water Management Institute, 2007.
Precaución: Estas citas no son 100% exactas.