Knauthe, H. E. (1967). Medium-term Planning of National Economy. The Institute of National Planning.
芝加哥风格引文Knauthe, Habil Erhart. Medium-term Planning of National Economy. Cairo: The Institute of National Planning, 1967.
MLA引文Knauthe, Habil Erhart. Medium-term Planning of National Economy. The Institute of National Planning, 1967.
警告：这些引文格式不一定是100％准确.