Cavagnaro, E., & Curiel, G. (2012). The three levels of sustainability. Greenleaf Pub..
芝加哥风格引文Cavagnaro, Elena, 与 George Curiel. The Three Levels of Sustainability. Sheffield, South Yorkshire, England: Greenleaf Pub., 2012.
MLA引文Cavagnaro, Elena, 与 George Curiel. The Three Levels of Sustainability. Greenleaf Pub., 2012.
警告：这些引文格式不一定是100％准确.