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: 4marts2021).