TY  - BOOK
AU  - Thomas,William L.
ED  - International Symposium on Man's Role in Changing the Face of the Ea rth, 
TI  - Man's role in changing the face of the earth / 
PY  - 1956///]
CY  - Chicago : 
PB  - Published for the Wenner-Gren Foundation for Anthropolo gical Research and the National Science Foundation by the University of Chicago Press , 
KW  - Anthropo-geography
KW  - congresses
N1  -  Includes bibliographical references
ER  -