TY  - BOOK
AU  - Prather,Edward E.
TI  - Lecture-tutorials for introductory astronomy
T2  - Addison-Wesley series in educational innovation
SN  - 0132392267
U1  - 520 
PY  - 2008///
CY  - San Francisco
PB  - Pearson Addison-Wesley
KW  - Astronomía
ER  -