@book{23380,
	author = {International Symposium on Man's Role in Changing the Face of the Earth and Thomas, William Leroy,},
	title = {Man's role in changing the face of the earth /},
	publisher = {Published for the Wenner-Gren Foundation for Anthropological Research and the National Science Foundation by the University of Chicago Press,},
	year = { c1956.},
	series = {A Phoenix book ;},
	address = {Chicago :}
}