Hvernig Vitar Work

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Michigan State Housing Development Authority. ". Kynning á Michigan Lighthouse Project " (7 Október 2010) http://www.michigan.gov/mshda/0,1607,7-141-54317_21818-120844--,00.html

Naval Aðstaða Engineering Command Washington DC, Chesapeake Divison. " Project Framkvæmd Plan fyrir Uppsetning Underwater Power Kaplar Smith Island, Cape Flattery, og eyðileggingu Island Vitar. " September 1, 1976. (5 október, 2010).http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA165750

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Roberts, Bruce; Jones, Ray " American Vitar:.. A Endanlegur Guide Second Edition " The Globe Pequot Press.. 2002.http://books.google.com/books?id=bBvbpF0utMwC&lpg=PA81&dq=american%20lighthouse&pg=PP1#v=onepage&q=american%20lighthouse&f=false

St. George Reef Lighthouse Preservation Society " Um okkur " (5. Október 2010) .http:... //www.stgeorgereeflighthouse.us/about.htm

Tybee Island Light Station " Day Marks. " (6 okt 2010) .http:... //www.tybeelighthouse.org/daymarks.htm

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United States Coast Guard " US björgunarbúnaður Service History " 21. júní 2010. (6. október, 2010) .http: //www.uscg.mil/tcyorktown/ops/nmlbs/Surf/surf1.asp

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