- Author: Petter Henriksen
- Language: Norwegian
- Year: 1995
- Author: Petter Henriksen
- Language: Norwegian
- Year: 1995
- Author: Българска академия на науките
- Language: Bulgarian
- Year: 1999
Leksikon 2 : L-Å
pdf
- Author: Bernard Dixon
- Language: Norwegian
- Year: 1991
Leksikon 1 : A-K
pdf
- Author: Bernard Dixon
- Language: Norwegian
- Year: 1991
- Author: Jack Meadows
- Language: Norwegian
- Year: 1990
Bioteknologi
pdf
- Author: John Hodgson
- Language: Norwegian
- Year: 1991
- Author: Nigel Calder John Newell
- Language: Norwegian
- Year: 1990
- Author: Nigel Calder John Newell
- Language: Norwegian
- Year: 1990