| Trích dẫn | Belikov, S.E. and A.N. Boltunov, 1998 The ringed seal (Phoca hispida) in the western Russian Arctic. NAMMCO Scientific Publications, 1:63-82. |
| Tài liệu tham khảo | 120662 Belikov, S.E. and A.N. Boltunov, 1998 |
| Trang | 70 |
| Named Used as Valid | Delphinapterus leucas |
| Địa phương | |
| Distribution |