Farming with nature : the science and practice of ecoagriculture Author(s) Scherr, Sara J. McNeely, Jeffrey A.
Slash and burn agriculture in the humid forest zone of Southern Cameroon : soil quality dynamics, improved fallow management and farmer's perceptions Author(s) Kanmegne, Jacques
Agriculture development and environment in critical areas of China Author(s) Sonntag, Bernard Honglie, Sun
Agricultura sostenible y reconversión productiva : logros y retos para el desarrollo sustentable 1994-2000
