Cita APA (7a ed.)
Henriet, J., Ek, G. v., Blade, S., & Singh, B. (1997). Quantitative assessment of traditional cropping systems in the Sudan savanna of northern Nigeria: III. Importance of trees, shrubs and secondary crops in the cropping systems.
Cita Chicago Style (17a ed.)
Henriet, J., G.A. van Ek, S. Blade, y B. Singh. Quantitative Assessment of Traditional Cropping Systems in the Sudan Savanna of Northern Nigeria: III. Importance of Trees, Shrubs and Secondary Crops in the Cropping Systems. 1997.
Cita MLA (9a ed.)
Henriet, J., et al. Quantitative Assessment of Traditional Cropping Systems in the Sudan Savanna of Northern Nigeria: III. Importance of Trees, Shrubs and Secondary Crops in the Cropping Systems. 1997.
Precaución: Estas citas no son 100% exactas.