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((Cite ngs|GT1811))
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((Cite ngs|GT1811|Whitney|2010-01-27))
((Cite ngs)) "Whitney". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2010-01-27.
((Cite ngs/sandbox)) "Whitney". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2010-01-27.
((Cite ngs |accessdate=2010-01-27 |designation=Whitney |id=GT1811))