@article {25749,
	title = {Distribution and variation in the native sheep of North America},
	volume = {24},
	year = {1940},
	pages = {505-581},
	publisher = {American Midland Naturalist },
	url = {http://www.jstor.org/stable/2420858?\&Search=yes\&term=athabasca\&list=hide\&searchUri=\%2Faction\%2FdoBasicResults\%3Fhp\%3D25\%26la\%3D\%26so\%3Dold\%26wc\%3Don\%26gw\%3Djtx\%26jcpsi\%3D1\%26artsi\%3D1\%26Query\%3Dathabasca\%26sbq\%3Dathabasca\%26dc\%3DBiological\%2BSciences\%26si},
	author = {Cowan, Ian McTaggart}
}
