| Avaa | Richardson, Frank toim.
Hamre, R. H. toim.
| Wild trout 3 : Proceedings of the Symposium, Yellowstone National Park September 24-25, 1984 | | kirja | kokoukset, konferenssit, lohi - salmo salar | Trout Unlimited and Federation of Fly Fishermen | Denver, Colorado | 1984 | 192 | | | Sponsored by Federation of Fly... | I-Tutkimus |