Cita APA (7a ed.)
Thornton, P. K., & Jones, P. G. (2009). Four degrees and beyond: What might this mean for agriculture in sub-Saharan Africa? International Livestock Research Institute.
Cita Chicago Style (17a ed.)
Thornton, Philip K., y Peter G. Jones. Four Degrees and Beyond: What Might This Mean for Agriculture in Sub-Saharan Africa? International Livestock Research Institute, 2009.
Cita MLA (9a ed.)
Thornton, Philip K., y Peter G. Jones. Four Degrees and Beyond: What Might This Mean for Agriculture in Sub-Saharan Africa? International Livestock Research Institute, 2009.
Precaución: Estas citas no son 100% exactas.