- Author: Paul Marshall
- Language: English
- Author: Paul Marshall
- Language: English
- Year: 2019
- Author: Paul Marshall
- Language: English
- Year: 1997
- Author: Edward F. Kelly and Paul Marshall
- Language: English
- Year: 2021
- Author: Paul Marshall
- Language: English
- Year: 2020
- Author: Paul Marshall
- Language: English
- Year: 1997