ebrary, Inc, Eksterowicz, A. J., & Hastedt, G. P. (2009). The presidency of the United States: New issues and developments. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, Anthony J. Eksterowicz, 与 Glenn P. Hastedt. The Presidency of the United States: New Issues and Developments. New York: Nova Science Publishers, 2009.
MLA引文ebrary, Inc, et al. The Presidency of the United States: New Issues and Developments. Nova Science Publishers, 2009.
警告：这些引文格式不一定是100％准确.