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.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)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.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)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.