- Author: Bob Johnson
- Language: English
- Year: 2017
- Author: Bob Johnson
- Language: English
- Year: 2019
- Author: Carmel Brendan, Doneley Bob, Johnson Robert, Monks Deborah
- Language: English
- Year: 2018
- Author: Bob Johnson Rob Oberwise (auth.)
- Language: English
- Year: 2012
- Author: Bob Johnson
- Language: English
- Year: 2006
- Author: Bob Johnson
- Language: English
- Year: 1993
- Author: Bob Johnson
- Language: English
- Year: 1998
- Author: Bob Johnson Alan Hart
- Language: English
- Year: 1998
- Author: Kate Williams Bob Johnson
- Language: English
- Year: 2003