Schmandt. George P. Mitchell and the Idea of Sustainability. Texas A&M University Press.
芝加哥风格引文Schmandt. George P. Mitchell and the Idea of Sustainability. Texas A&M University Press.
MLA引文Schmandt. George P. Mitchell and the Idea of Sustainability. Texas A&M University Press.
警告：这些引文格式不一定是100％准确.