Man's role in changing the face of the earth : Vol. 1 / Edited by William L. Thomas, with the collaboration of Carl O. Sauer, Marston Bates [and] Lewis Mumford. International Symposium on Man's Role in Changing the Face of the Earth (1955 : Princeton, N.J.) Thomas, William Leroy, 1920-, editor. Human geography Congresses. Anthropology Congresses. Economics Congresses. Environment Congresses. G56 .I63 1955 337.7 THM Includes bibliographies. Chicago, Published for the Wenner-Gren Foundation for Anthropological Research and the National Science Foundation by the University of Chicago Press c1956. c1956. 1956 Text xxxviii, 1193 p. eng