A General Earth Magnetic Investigation of Sweden, carried out during the period 1928-1934 by the Geological Survey of Sweden. 3 (Horizontal Intensity) & 4 (Vertical Intensity and Horizontal Disturbing Force).
Häftad bok.
Mycket gott skick. Sthm 1941-2. Stor 4:o. 106 + 104 s. + 9 utvikbara kartor i färg + tryckta omslag. (SGU, Ca 33-4.) Biblioteksstämplar. Fina ex. [3C]