TY  - BOOK
AU  - Palen, Stacy E
AU  - Blumenthal, George
AU  - Kay, Laura
AU  - Smith, Brad
TI  - Understanding our universe
SN  - 978-0-393-91210-4
PY  - 2012///
CY  - New York
PB  - W. W Norton
KW  - Astronomy-Textbooks
KW  - Light and telescopes
KW  - The solar system
KW  - The Universe
ER  -