| Referens | Markussen, N.H., A. Bjorge and N.A. Oritsland, 1989 Growth in harbour seals (Phoca vitulina) on the Norwegian Coast. Journal of Zoology 219:433-440. |
| Ref. | 3741 Markussen, N.H., A. Bjorge and N.A. Oritsland, 1989 |
| Sida | |
| Named Used as Valid | Phoca vitulina |
| Observationsplats | |
| Distribution | Norway. |