@book{163074,
	author = {Ross, Robert M.},
	title = {Causes of evolution},
	publisher = {University of Chicago Press},
	year = {1990.},
	address = {Chicago},
	note = {"This volume originated in a student-run seminar series in 'Earth History and Paleobiology' held at Harvard University in the spring of 1987"--Pref.}
}