Farm household systems in northern Ghana
: a case study in farming systems oriented research for the development of improved crop production systems / [Nyankpala Agricultural Experiment Station]. Artur Runge-Metzger and Lothar Diehl (eds.). - Weikersheim : Margraf, 1993. - VIII, 249 S. : graph. Darst., Kt.; 21 cm - (Nyankpala agricultural research report; 9)
ISBN 978-3-8236-1229-2 / 3-8236-1229-8 kart. : DM 39.00
Literaturverz. S. 171 - 193
Quelle: DNB
Hailu, Zegeye: Sustainability of land use systems
: the potential of indigenous measures for the maintenance of soil productivity in Sub-Sahara African agriculture ; a review of methodologies and research results / Zegeye Hailu ; Artur Runge-Metzger. GTZ. - Weikersheim : Margraf, 1993. - V, 168 S. : Ill., graph. Darst.; 21 cm - (Tropical agro-ecology; 7)
ISBN 978-3-8236-1219-3 / 3-8236-1219-0 kart. : DM 32.00
Literaturverz. S. 84 - 114
Quelle: DNB
