ebrary, Inc, Shapiro, I., & Bedi, S. (2007). Political contingency: Studying the unexpected, the accidental, and the unforeseen. New York University Press.
芝加哥风格引文ebrary, Inc, Ian Shapiro, 与 Sonu Bedi. Political Contingency: Studying the Unexpected, the Accidental, and the Unforeseen. New York: New York University Press, 2007.
MLA引文ebrary, Inc, et al. Political Contingency: Studying the Unexpected, the Accidental, and the Unforeseen. New York University Press, 2007.
警告：这些引文格式不一定是100％准确.