Berneri, C. (1976). Peter Kropotkin: His federalist ideas. Simian.
Lua i Stíl Chicago (17ú heag.)Berneri, Camillo. Peter Kropotkin: His Federalist Ideas. Honley: Simian, 1976.
Lua MLA (8ú heag.)Berneri, Camillo. Peter Kropotkin: His Federalist Ideas. Simian, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.