TY  - BOOK
AU  - Seeds,Michael A.
TI  - Horizons: exploring the universe 
SN  - 0534097928
AV  - QB45.S4 1989 
PY  - 1989///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Astronomy
N1  - Includes bibliographies and index
ER  -