TY  - BOOK
AU  - Mackenzie,Fred T.
TI  - Our changing planet: an introduction to earth system science and global environmental change 
SN  - 0132713217
AV  - GE 105 .M33 1998
PY  - 1998///
CY  - Upper Saddle River
PB  - Prentice Hall
KW  - Environmental sciences
KW  - Human ecology
N1  - Includes bibliographical references and index
ER  -