1. The Origin of Species by Means of Natural Selection; or the Preservation of Favoured Races in the Struggle for Life;Darwin,1876
2. Trends in avian systematics;Mayr;Ibis,1959
3. The Meaning of Evolution;Simpson,1949
4. Chance and creativity in evolution;Dobzhansky,1974
5. Serological analysis of the systematics of recent hominoids;Goodman;Human Biol.,1963