ebrary, Inc, Jacobs, L. R., & King, D. S. (2009). The unsustainable American state. Oxford University Press.
芝加哥风格引文ebrary, Inc, Lawrence R. Jacobs, 与 Desmond S. King. The Unsustainable American State. Oxford ; New York: Oxford University Press, 2009.
MLA引文ebrary, Inc, et al. The Unsustainable American State. Oxford University Press, 2009.
警告：这些引文格式不一定是100％准确.