TY  - BOOK
ED  - Time-Life Books
TI  - The Natural world
T2  - TimeFrame
SN  - 0809464918
AV  - D21.3 .N38 1991
U1  - 909 20
CY  - Alexandria, Va.
PB  - Time-Life Books
KW  - World history
KW  - Nature
KW  - Effect of human beings on
KW  - Human beings
KW  - Effect of environment on
N1  - Includes bibliographical references (p. 169-170) and index
ER  -