TY  - BOOK
AU  - Mackenzie,Fred T.
AU  - Mackenzie,Judith A.
TI  - Our changing planet: an introduction to earth system science and global environmental change 
SN  - 0023736534
PY  - 1995///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Environmental sciences
KW  - Human ecology
KW  - Man
KW  - Influence on nature
ER  -