Delegationerne for nordisk okonomisk samarbejde & Classen, E. (1937). The northern countries in world economy ; Denmark, Findland, Iceland, Norway, Sweden. The Delegations for the promotion of economic co-operation between the northern countries.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Delegationerne for nordisk okonomisk samarbejde و Ernest Classen. The Northern Countries in World Economy ; Denmark, Findland, Iceland, Norway, Sweden. [Helsingforsn]: The Delegations for the promotion of economic co-operation between the northern countries, 1937.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Delegationerne for nordisk okonomisk samarbejde و Ernest Classen. The Northern Countries in World Economy ; Denmark, Findland, Iceland, Norway, Sweden. The Delegations for the promotion of economic co-operation between the northern countries, 1937.