| Citation | Schreiber, R.W. 1970 Breeding biology of Western gulls (Larus occidentalis) on San Nicolas Island, California, 1968. The Condor 72:133-140. |
| DOI / ISBN | |
| Paper URL | http://www.jstor.org/stable/1366622 |
| Ref. No. | 80153 |
| Language | English |
| Usage | not used yet |
| Remarks | |
| Find this reference in | Google Scholar | Scirus | Species used from this reference |
| Cross references | 72944, 80055 |