TY  - BOOK
AU  - North, Gerald                                               
TI  - Astronomy explained
SN  - 3-540-76136-5
PY  - 1997///
CY  - London
PB  - Springer-Verlag
KW  - Astronomy
KW  - Celestial sphere
KW  - Cosmology
KW  - Universe
ER  -