Ackerman, P. (2000). A force more powerful: A century of nonviolent... Palgrave.
Chicago-čujuhus (17. p.)Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... New York: Palgrave, 2000.
MLA-čujuhus (9. p.)Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... Palgrave, 2000.
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