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2. : In (eds): The Genetics and Biology of Drosphila Vol. 3e. London: Academic Press, 1984, (in preparation).
3. : Composition and Biogeography of the Afrotropical Drosophilid fauna. In (eds): The Genetics and Biology of Drosophila. London: Academic Press, 1981, Vol 3a, pp 197-259.
4. : The phylogeny, ecology and geography of Drosophila. In (ed): Handbook of Genetics. New York: Plenum Press, 1975, Vol 3, pp 421-469.