TY  - BOOK
AU  - Snow,Theodore P.
TI  - Essentials of the dynamic universe: an introduction to astronomy 
SN  - 0314578714
U1  - 520 20
PY  - 1990///
CY  - Saint Paul, MN
PB  - West Pub. Co.
KW  - Astronomy
N1  - Includes bibliographies and index
ER  -