TY  - BOOK
AU  - Simmons,I.G.
TI  - Changing the face of the earth: culture, environment, history 
SN  - 0631140492
PY  - 1989///
CY  - New York, NY, USA
PB  - B. Blackwell
KW  - Nature
KW  - Effect of human beings on
KW  - History
KW  - Human ecology
N1  - Includes bibliographical references
ER  -