TY  - BOOK
AU  - Bergamini,David
ED  - Time-Life Books.
TI  - The universe,
AV  - QB44 .B399 1969
U1  - 520 
PY  - 1969///]
CY  - New York
PB  - Time-Life Books
KW  - Astronomy
KW  - Popular works
N1  - Bibliography: p. 188
ER  -