- Author: Eugene H. Spafford Leigh Metcalf, Josih Dykstra
- Language: English
- Year: 2023
- Author: Eugene H. Spafford, Leigh Metcalf, Josiah Dykstra
- Language: English
- Year: 2023
- Author: Leigh Metcalf William Casey
- Language: English
- Year: 2016
- Author: Leigh Metcalf William Casey
- Language: English
- Year: 2016