* {{citeCite book|author = White, M. J. D.|title = Modes of Speciation|edition = | publisher = W. H. Freeman and Company| year = 1978| location = San Francisco, California|isbn = 0-7167-0284-3| ref = harv}}
* [http://publishing.royalsociety.org/microgenesis Dedicated issue of ''Philosophical Transactions B'' on Speciation in microorganisms is freely available.]