1. A design for a geodetic data base management system;Alger,1975
2. Status of the new adjustment of the North American horizontal datum;Bossler,1974
3. Model 2 analysis of variance of astronomic latitude and longitude observed by the National Geodetic Survey;Carroll,1975
4. Use of Doppler positions of control classical geodetic networks;Dracup,1975
5. NGS computer programs for the adjustment of horizontal networks;Gergen,1975