Kleemeyer, H. (1995). The North Sea... not yet history: Fourth International Conference on the protection of the North Sea, june 1995 : a WWF position paper. Surrey: WWF.
芝加哥风格引文Kleemeyer, Hermann. The North Sea... Not yet History: Fourth International Conference on the Protection of the North Sea, June 1995 : A WWF Position Paper. Surrey: WWF, 1995.
MLA引文Kleemeyer, Hermann. The North Sea... Not yet History: Fourth International Conference on the Protection of the North Sea, June 1995 : A WWF Position Paper. Surrey: WWF, 1995.
警告：这些引文格式不一定是100％准确.