Ekrem, I., & Boje Mortensen, L. (2006). Historia Norwegie. Museum Tusculanum Press.
Tohutoru Kātū Chicago (17th ed.)Ekrem, Inger, me Lars Boje Mortensen. Historia Norwegie. Museum Tusculanum Press, 2006.
Tohutoro MLA (9th ed.)Ekrem, Inger, me Lars Boje Mortensen. Historia Norwegie. Museum Tusculanum Press, 2006.
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