TY  - BOOK
TI  - Unit resource book: Earth's surface
SN  - 9780618406265
U1  - DK12 550.7 2000
PY  - 2000///
CY  - Evanston, Ill. : 
PB  - McDougal Littell, 
KW  - Earth science
KW  - Study and teaching
ER  -