Transfer of Knowledge on Agroforestry Management Practices: the Structure of Farmer Advice Networks.Published in:Ecology & Society, 2007, v. 12, n. 2, p. 1, doi. 10.5751/ES-02196-120232By:Isaac, Marney E.;Erickson, Bonnie H.;Quashie-Sam, S. James;Timmer, Vic R.Publication type:Article