00490nam a2200169Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 910.4 LAU Laursen, Viggo 46 Anne polaire internationale 1932-33 observations faites a thule Viggo Laursen Copenhagen I Kommission Hos G E G Gad 1943 xxix, 53p. Geomagnetism 47 Greenland- Qaanaaq 48 BK 61 61 0 0 0 0 BAN KOD GEN 0000-00-00 0 910.4/ LAU 13 2021-11-05 0000-00-00 BK