1. Map of the natural zones of the ocean;Bogdanov;Okeanologiya,1961
2. Note. The original is in Russian. An English translation, complete with map;Deep Sea Res.,1963
3. A preliminary check-list of Ghanaian fresh- and brackish-water algae. Jfl W;Lawson;Afr. Sci. Ass.,1960
4. Additions to a preliminary check-list of Ghanaian fresh- and brackish-water algae;Lawson;Jl W. Afr. Sci. Ass.,1965
5. A check list of tropical West African algae (fresh- and brackish-water);Woodhead;Hydrobiologia,1958