| Citation | Bullock, I.D. and C.H. Gomersall, 1981. The breeding populations of terns in Orkney and Shetland in 1980. Bird Study 28:187-200. |
| DOI | http://dx.doi.org/ |
| Paper URL | |
| Address | |
| Ref. No. | 58616 |
| Language | English |
| Usage | not used yet |
| Comments | |
| Remarks | |
| Find this reference in | Google Scholar | Scirus | Species used from this reference |