SpringerLink (Online service), Dakora, F. D., Chimphango, S. B. M., Valentine, A. J., Elmerich, C., & Newton, W. E. (2008). Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture: Proceedings of the 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation. Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Felix D. Dakora, Samson B. M. Chimphango, Alex J. Valentine, Claudine Elmerich, και William E. Newton. Biological Nitrogen Fixation: Towards Poverty Alleviation Through Sustainable Agriculture: Proceedings of the 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation. Dordrecht: Springer Netherlands, 2008.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Biological Nitrogen Fixation: Towards Poverty Alleviation Through Sustainable Agriculture: Proceedings of the 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation. Springer Netherlands, 2008.