TY  - BOOK
AU  - Mackenzie, Fred T.
TI  - Our changing planet: An introduction to earth system and global environmental change
SN  - 0130651729
AV  - GE 105.M33 2002 
PY  - 2002///
CY  - New Jersey
PB  - Pearson education
KW  - Environmental sciences
KW  - Human ecology
KW  - Nature-Effect of human beings on
KW  - Global environmental change
ER  -