written by Gérard Buttoud, edited by Frank Place and Michelle Gauthier, designed by Kristel Gallopin, supervised and coordinated by Michelle Gauthier, developed in collaboration with CATIE (Guillermo Detlefsen), CIRAD (Emmanuel Torquebiau), ICRAF (Frank Place and Oluyede Ajayi).Food and Agriculture Organization of the United Nations2013.<A161-B1428>