Parcourir Department of Rural Economy and Agriculture (DREA) par sujet "Farming systems"
Voici les éléments 1-2 de 2
-
Annual report 1984-85, SAFGRAD JP 31 Farming System Research (FSR)
(AU-SAFGRAD, 1984) -
FOOD GRAIN PRODUCTION IN SEMI - ARID AFRICA
(AU-SAFGRAD, 1986)
