TY  - BOOK
AU  - Seeds,Michael A.
TI  - Horizons: exploring the universe 
SN  - 0534079261 (pbk.)
AV  - QB45 .S44 1987
U1  - 520 19
PY  - 1987///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Astronomy
N1  - Includes bibliographies and index
ER  -