TY  - BOOK
TI  - Understanding Earth
SN  - 0716766825 (softbound)
AV  - QE28 .P9 2007
U1  - 551.8 22
PY  - 2007///
CY  - New York
PB  - W.H. Freeman
KW  - Earth sciences
N1  - Includes bibliographical references and index
ER  -