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Hegazi, N.A., M. Fayez and M. Monib (eds.): Nitrogen Fixation with Non- Legumes.The Sixth International Symposium on Nitrogen Fixation with Non- Legumes, Ismailia-Egypt, 6-10 September 1993.1994.figs.tabs.maps.XIX, 599 p.4to.Hard cover.(62191) 63.13
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