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- [4] Progress of the geodetic work of the United States Coast and Geodetic Survey TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1928, 9 : 38 - 41
- [5] A progress report on the geodetic work of the United States and geodetic survey TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1927, 8 (61): : 65 - 66
- [6] Progress report in seismology for the United States Coast and Geodetic Survey TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1936, 17 : 77 - 83