Staaf, K., & Wiksten, N. (1984). Tree harvesting techniques. M. Nijhoff / W. Junk Publishers.
芝加哥风格引文Staaf, K.A.G, 与 N.A Wiksten. Tree Harvesting Techniques. Dordrecht: M. Nijhoff / W. Junk Publishers, 1984.
MLA引文Staaf, K.A.G, 与 N.A Wiksten. Tree Harvesting Techniques. M. Nijhoff / W. Junk Publishers, 1984.
警告：这些引文格式不一定是100％准确.