Links
[1] https://civilresistance.info/biblio-item/2010/training-manual-nonviolent-defense-against-coup-detat
[2] https://civilresistance.info/biblio-item/1988/against-bomb-british-peace-movement-1958-1965
[3] https://civilresistance.info/biblio-item/1987/campaigns-peace-british-peace-movements-twentieth-century
[4] https://civilresistance.info/biblio-item/1987/nonviolent-direct-action-1950s-and-1960s