| Avaa | Skurdal, Jostein toim.
Westman, Kai toim.
Bergan, Per Ivar toim.
| Crayfish Culture in Europe : Report from the workshop on crayfish culture 16-19 November 1987, Trondheim, Norway | | kirja | ravustus, ravut | Lyngaas Form & Data | Lillehammer | 1987 | 198 | 82-7072-0569 | | | G-Ravut, ravustus |