Fristrup., B. (1962) “Geological Map of the Arctic. Prepared by the First International Symposium on Arctic Geology 1960. Sponsored by The Alberta Society of Petroleum Geologists, Calgary. 40‘ X 45’. $ 4,50”., Geografisk Tidsskrift, 61. Tilgængelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/46728 (Set: 5 december 2025).