a training sourcebook University of the Philippines at Los Ba©łos Food and Agriculture Organization of the United Nations Food and Agriculture Organization of the United Nations text Rome Food and Agriculture Organization of the United Nations 2006 monographic vii, 131 p. : ill. ; 26 cm "Printed with the support of the Livelihood Support Programme." Communication in agriculture Communication in agriculture Communication in conservation of natural resources Sustainable agriculture 630 FOO 2006 A041 Or. 9251054827