| Citation | Sea Grant 2005 Past and present. University of Delaware Sea Grant College Program. http://www.ocean.udel.edu/horseshoecrab/History/pastpresent.html (accessed 8-12-2005) |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 71 |
| Language | English |
| Usage | used in part |
| Remarks | |
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