TY  - BOOK
AU  - Petersen, Carolyn Collins 
TI  - Astronomy 101 : : from the sun and moon to wormholes and warp drive, key theories, discoveries, and facts about the universe 
SN  - 9781440563591
U1  - 520 PET-C 
PY  - 2013///
CY  - India
PB  - Adams Media
KW  - Astronomy
ER  -