Cita APA (7a ed.)
Vivalo, J. (2011). Top 5 exporters, 2008--a handfull of countries export most of the world's staple grains. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Vivalo, Julia. Top 5 Exporters, 2008--a Handfull of Countries Export Most of the World's Staple Grains. International Food Policy Research Institute, 2011.
Cita MLA (9a ed.)
Vivalo, Julia. Top 5 Exporters, 2008--a Handfull of Countries Export Most of the World's Staple Grains. International Food Policy Research Institute, 2011.
Precaución: Estas citas no son 100% exactas.