TY  - BOOK
AU  - Ernst,W.G.
TI  - Earth systems: processes and issues 
SN  - 0521473233 (hbk.)
PY  - 2000///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Earth systems
KW  - Earth sciences
N1  - Includes index; Includes bibliographical references.
ER  -