TY  - BOOK
AU  - Seeds,Michael A.
TI  - Horizons: exploring the universe 
SN  - 0534040179 (pbk.) :
U1  - 520 23
PY  - 1985///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Astronomy
N1  - Includes index; Includes bibliographies
ER  -