- Author: Findlay William, Hughes John, Watt David A
- Language: English
- Year: 1990
- Author: Andrew Smith William Hughes (eds.)
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- Year: 2003
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- Language: English
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- Author: William Hughes Andrew Smith (eds.)
- Language: English
- Year: 1998
- Author: William Hughes
- Language: English
- Year: 2012
- Author: William Hughes
- Language: English
- Year: 2000
- Author: William Hughes
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- Year: 1999
- Author: Andrew Smith William Hughes
- Language: English
- Year: 2003
- Author: Andrew Smith William Hughes
- Language: English
- Year: 2003
- Author: William Hughes
- Language: English
- Year: 1996