Garner, C. L., Captain (retired) (April 1949). "A Geodetic Measurement of Unusually High Accuracy"(PDF). U.S. Coast and Geodetic Survey Journal. Coast and Geodetic Survey. pp. 68–74. பார்க்கப்பட்ட நாள் August 13, 2009.{{cite web}}: CS1 maint: multiple names: authors list (link)