TY  - BOOK
AU  - Ratledge, David
TI  - Software and data for practical astronomers: the best of the Internet
T2  - Practical astronomy
SN  - 1-85233-055-4
PY  - 1999///
CY  - London
PB  - Springer-Verlag
KW  - Astronomy
KW  - Internet
ER  -