TY  - BOOK
AU  - ASIMOV (Issac)
TI  - Counting the eons
SN  - 0 586 05843 5
U1  - 523.2 ASIC 
PY  - 1981///
CY  - London
PB  - Grafton Books
KW  - Eons
KW  - Astronomy
ER  -