rees, c. j. v. (1964). some remarks on tinbergen's approach of project appraisal. the institute of national planning.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)rees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. cairo: the institute of national planning, 1964.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)rees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. the institute of national planning, 1964.