@book{58739,
	author = {"Clausen, J., Keck, David. D. & Hiesey, William.M."},
	title = {Experimental studies on the nature of species -4 vols. :V.3.  Environmental responses of climatic races of Acsillea},
	publisher = {Carnegic Institution},
	year = {Washington},
	address = {1945}
}