
- Author: Anton Jarstad, Olaf Olsen, Martin O Onstad, Fred Lier
- Language: English
- Year: 1942

- Author: Christensen Bernhard Marinus
- Language: English
- Year: 1976

- Author: Wold Erling, Wold Marge
- Language: English
- Year: 1973

- Author: Hollenweger Walter J
- Language: English
- Year: 1972