FRISTRUP., B. Glacier Variations and Climatic Fluctuations. H. W: son Ahlmann Bowman Memorial Lectures, Series 3. New York: American Geographical Society, 1953. V + 51 sider, illustrationer og diagrammer. 15X19 cm. 2,50 $. Geografisk Tidsskrift, [S. l.], v. 53, 1954. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/46200. Acesso em: 21 dec. 2024.