Voigtsberger, S. (1973). Some Ideas Concerning Aims, Tasks and Principles of Organization of Spatial Planning. The Institute of National Planning.
芝加哥风格引文Voigtsberger, Siegfried. Some Ideas Concerning Aims, Tasks and Principles of Organization of Spatial Planning. Cairo: The Institute of National Planning, 1973.
MLA引文Voigtsberger, Siegfried. Some Ideas Concerning Aims, Tasks and Principles of Organization of Spatial Planning. The Institute of National Planning, 1973.
警告：这些引文格式不一定是100％准确.