Bird, W. R. The origin of species revisited: The theories of evolution and of abrupt appearance. Philos. Libr.
Chicago-Zitierstil (17. Ausg.)Bird, W. R. The Origin of Species Revisited: The Theories of Evolution and of Abrupt Appearance. New York: Philos. Libr.
MLA-Zitierstil (9. Ausg.)Bird, W. R. The Origin of Species Revisited: The Theories of Evolution and of Abrupt Appearance. Philos. Libr.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.