- Author: Rony De Laet (auth.)
- Language: English
- Year: 2012
- Author: Torben Andersen Anita Enmark (auth.)
- Language: English
- Year: 2011
- Author: Asger Aaboe (auth.)
- Language: English
- Year: 2001
- Author: Dennis Allen (auth.) Patrick Moore (eds.)
- Language: English
- Year: 1996
- Author: Martin Mobberley (auth.)
- Language: English
- Year: 2004
- Author: Steven Lee (auth.) Stephen F. Tonkin BSc PGCE (eds.)
- Language: English
- Year: 1999
- Author: Peter T. Wlasuk FRAS (auth.)
- Language: English
- Year: 2000
- Author: Chris Kitchin (auth.)
- Language: English
- Year: 2002
Observing Comets
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- Author: Nick James Gerald North (auth.)
- Language: English
- Year: 2003