TY  - BOOK
TI  - Horizons : : exploring the universe  / 
SN  - 9780495560425
AV  - QB 45.2  .Se451 2010 
U1  - M 520  
PY  - 2010///
CY  - Belmont, CA
PB  - Thomson Brooks/Cole
N1  - college students; 1210L-1700L
ER  -