| Authors(s) | Johnsen, S. |
| Year | 1945 |
| Title | Studies on variation in fish in NorthEuropean waters. I. Variation in size. Pergens Mus. Årb., 1944, (1): 129 p. |
| Authors(s) | Johnsen, S. |
| Year | 1945 |
| Title | Studies on variation in fish in NorthEuropean waters. I. Variation in size. Pergens Mus. Årb., 1944, (1): 129 p. |