@book {1731,
	title = {Evolution and the Levels of Selection},
	year = {2006},
	pages = {263},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	address = {New York},
	abstract = {<p>Does natural selection act primarily on individual organisms, on groups, on genes, or on whole species? The question of levels of selection - on which biologists and philosophers have long disagreed - is central to evolutionary theory and to the philosophy of biology. Samir Okasha{\textquoteright}s comprehensive analysis gives a clear account of the philosophical issues at stake in the current debate.</p>
},
	keywords = {Biology., Evolution, Natural selection},
	isbn = {0199267979 },
	url = {http://lccn.loc.gov/2006039679},
	author = {Okasha, Samir}
}
