U.S. Coast and Geodetic Survey. Centennial celebration of the United States Coast and Geodetic Survey, April 5 and 6, 1916, Washington, D.C.

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U.S. Coast and Geodetic Survey.

Centennial celebration of the United States Coast and Geodetic Survey, April 5 and 6, 1916, Washington, D.C.

U.S. Coast and Geodetic Survey.

Geodesy -- United States.