Yazar
Sandford R Holdahl
2 cilt bulundu.
Cilt sonuçları
A model of temperature stratification for correction of leveling refraction
Sandford R Holdahl · U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey
27 sayfa · 1981
Leveling
Empirical calibration of Zeiss NI-1 level instruments to account for magnetic errors
Sandford R Holdahl · For sale by the National Geodetic Information Center
23 sayfa · 1986
Magnetic measurements / Level indicators