Ackerman, P. (2000). A force more powerful: A century of nonviolent... Palgrave.
芝加哥风格引文Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... New York: Palgrave, 2000.
MLA引文Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... Palgrave, 2000.
警告：这些引文格式不一定是100％准确.