Hafsten, U. (1965). Vegetational history and land occupation in Valldalen in the sub-alpine region of Central South Norway, traced by pollen analysis and radiocarbon measurements: With 5 figures and 2 plates. Norwegian University Press.
Chicago-Zitierstil (17. Ausg.)Hafsten, Ulf. Vegetational History and Land Occupation in Valldalen in the Sub-alpine Region of Central South Norway, Traced by Pollen Analysis and Radiocarbon Measurements: With 5 Figures and 2 Plates. Bergen ; Oslo: Norwegian University Press, 1965.
MLA-Zitierstil (9. Ausg.)Hafsten, Ulf. Vegetational History and Land Occupation in Valldalen in the Sub-alpine Region of Central South Norway, Traced by Pollen Analysis and Radiocarbon Measurements: With 5 Figures and 2 Plates. Norwegian University Press, 1965.