Cita APA (7a ed.)
Nkonya, E. M., Gicheru, P., Woelcke, J., Okoba, B., Kilambya, D. W., & Gachimbi, L. N. (2008). On-site and off-Site long-term economic impacts of soil fertility management practices: The case of maize-based cropping systems in Kenya. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Nkonya, Ephraim M., Patrick Gicheru, Johannes Woelcke, Barrack Okoba, Daniel W. Kilambya, y Louis N. Gachimbi. On-site and Off-Site Long-term Economic Impacts of Soil Fertility Management Practices: The Case of Maize-based Cropping Systems in Kenya. International Food Policy Research Institute, 2008.
Cita MLA (9a ed.)
Nkonya, Ephraim M., et al. On-site and Off-Site Long-term Economic Impacts of Soil Fertility Management Practices: The Case of Maize-based Cropping Systems in Kenya. International Food Policy Research Institute, 2008.
Precaución: Estas citas no son 100% exactas.