| Referens | Siefield, W. 2006 Subphyllum Cephalochordata. Programa De Biodiversidad. |
| DOI / ISBN | |
| Artikelns URL | |
| Ref. No. | 1453 |
| Språk | Spanish |
| Användning | used in part |
| Comments on the publication | |
| Sök denna referens i | Google Scholar | Scirus | Species used from this reference |
| Cross references |