1. Adams, J. G. 1958 — Floristique des paturages salés et végétation des rizières du Sine-Saloum.J. Agric. trop. Bot. appl. 5, 505–541, 638–664.
2. Beadle, L. G. &Lind, E. M. 1960 — Research on the Swamps of Uganda.Uganda J. 24, 84–98.
3. Boughey, A. S. 1963 — The explosive development of a floating weed vegetation on Lake Kariba.Adansonia, N. S. 3, 49–61.
4. Braun-Blanquet, J. 1951 — Pflanzensoziologie ed. 2, Wien.
5. Clayton, W. D. 1957 — A preliminary survey of soil and vegetation in Northern Nigeria.Regional Research Station, Samaru, Zaria, Northern Nigeria: Departmental Report.