Ackerman, P. (2000). A force more powerful: A century of nonviolent... Palgrave.
Lua i Stíl Chicago (17ú heag.)Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... New York: Palgrave, 2000.
Lua MLA (9ú heag.)Ackerman, Peter. A Force More Powerful: A Century of Nonviolent... Palgrave, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.