Enlace original:
https://cgspace.cgiar.org/handle/10568/103890
Henriet, J.
,
Ek, G.A. van
,
Blade, S.
,
Singh, B.
,
[Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria: I. Rapid survey of prevalent cropping systems]
,
Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria: I. Rapid survey of prevalent cropping systems