spevacek, v. (1966). some problems of working out and utilization in planning the structural balances (in put-out put tables) in czechoslovakia. the institute of national planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)spevacek, vojtech. Some Problems of Working Out and Utilization in Planning the Structural Balances (in Put-out Put Tables) in Czechoslovakia. cairo: the institute of national planning, 1966.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)spevacek, vojtech. Some Problems of Working Out and Utilization in Planning the Structural Balances (in Put-out Put Tables) in Czechoslovakia. the institute of national planning, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.