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Bowditch, Nathaniel. The American Practical Navigator [online]. Bethesda (Maryland): National Geospatial-Intelligence Agency, 2002 [cited 15 November 2010]. 2002 bicentennial ed. Corrected through US notice to mariners no. 52/2002, 28 December 2002. Available from World Wide Web: <http://dnc.nga.mil/NGAPortal/MSI.portal?_nfpb=true&_pageLabel=msi_portal_page_62&pubCode=0002>. Document NVPUB9V1. |