Pawel Michalak (2013), Speciation: Natural Processes, Genetics and Biodiversity, Nova Science Pub Inc, p. 264, ISBN1626183899
Peter R. Grant and B. Rosemary Grant (2011), How and why species multiply: The radiation of Darwin’s finches, Princeton University Press, p. 224, ISBN9780691149998
Trevor Price (2008), Speciation in Birds, Roberts and Company, p. 470, ISBN0974707783
Jerry A. Coyne and H. Allen Orr (2004), Speciation, Sinauer Associates, p. 480, ISBN0-87893-091-4
Historical speciation literature
Daniel Otte and John A. Endler (1989), Speciation and its consequences, Sinauer, p. 679, ISBN0878936572
Verne Grant (1981), Plant Speciation, Columbia University Press, p. 563, ISBN0231051123
Michael J. D. White (1978), Modes Of Speciation, W. H. Freeman and Co., p. 349, ISBN0716702843
Ernst Mayr (1963), Animal species and evolution, Harvard University Press, p. 797, ISBN9780674865327
Ernst Mayr (1942), Systematics and the Origin of Species from the Viewpoint of a Zoologist, Columbia University Press, p. 372, ISBN9780674862500
Theodosius Dobzhansky (1937), Genetics and the Origin of Species, Columbia University Press, p. 364