CHRISTIANSEN, S. Food from dry lands, an integrated approach to planning of agricultural development. Th. Alberda et al. (eds.) - (Systems Approaches for sustainable agricultural development;. Geografisk Tidsskrift, [S. l.], v. 93, 1993. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/42256. Acesso em: 24 apr. 2024.