Cita APA (7a ed.)
Williams, T. O., Powell, J., & Fernández Rivera, S. (1995). Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?
Cita Chicago Style (17a ed.)
Williams, Timothy O., J.M Powell, y S. Fernández Rivera. Soil Fertility Maintenance and Food Crop Production in Semi-arid West Africa: Is Reliance on Manure a Sustainable Strategy? 1995.
Cita MLA (9a ed.)
Williams, Timothy O., et al. Soil Fertility Maintenance and Food Crop Production in Semi-arid West Africa: Is Reliance on Manure a Sustainable Strategy? 1995.
Precaución: Estas citas no son 100% exactas.