United Nations Economic Commission for Europe & Food and agriculture organization of the united nations. (1994). The forest resources of the temperate zones: Forest resource information of some newly constituted countries ( Armenia, Croatia, Czech Republic, Estonia, Latvia, Lithuania, Slovak Republic, Slovenia ).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Nations Economic Commission for Europe و Food and agriculture organization of the united nations. The Forest Resources of the Temperate Zones: Forest Resource Information of Some Newly Constituted Countries ( Armenia, Croatia, Czech Republic, Estonia, Latvia, Lithuania, Slovak Republic, Slovenia ). 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United Nations Economic Commission for Europe و Food and agriculture organization of the united nations. The Forest Resources of the Temperate Zones: Forest Resource Information of Some Newly Constituted Countries ( Armenia, Croatia, Czech Republic, Estonia, Latvia, Lithuania, Slovak Republic, Slovenia ). 1994.