- Author: Michael Swan Catherine Walter
- Language: English
- Year: 2005
- Author: Michael Swan Catherine Walter
- Language: English
- Year: 1997
- Author: Michael Swan Catherine Walter Desmond O'Sullivan
- Language: English
- Year: 1993
- Author: Michael Swan Catherine Walter
- Language: English
- Year: 2000
- Author: Michael Swan Catherine Walter
- Language: English
- Year: 1997
- Author: Michael Swan Catherine Walter
- Language: English
- Year: 2003