TY  - BOOK
AU  - Hesser,Dale T
AU  - Leach,Susan S
TI  - Focus on Earth Science
SN  - 0675026717
U1  - 550 19
PY  - 1989///
CY  - Ohio
PB  - Merrill Publishing Company
KW  - Earth
KW  - Spines
KW  - Geology
N2  - Environment Management
ER  -