TY  - BOOK
AU  - North Gerald
TI  - Advanced amateur astronomy
SN  - 0521574307 (pbk)
U1  - B9, N7 
PY  - 1997///
CY  - Cambridge
PB  - Cambridge University Press       
KW  - Astronomy
N1  - Bibliographical reference 379-393p; Appendix 394-395p; Index 396-400p
ER  -