TY  - BOOK
AU  - James, N and North, G
AU  - North, G.
TI  - Observing comets
T2  - Patrick Moore's Practical Astronomy Series
SN  - 0-85233-557-2
PY  - 2003///
CY  - London
PB  - Springer
KW  - Astrometry
KW  - Cometary Photometry
KW  - Comets- Amateur's Manuals
KW  - Comets- Observer's Manulas
ER  -