TY  - BOOK
AU  - Flower,Phillip J.
TI  - Understanding the universe
SN  - 0314578803
AV  - QB45 .F784 1990
U1  - 520 20
PY  - 1990///
CY  - St. Paul
PB  - West Pub. Co.
KW  - Astronomy
N1  - Includes bibliographical references and index
ER  -