Alexander, B. (1982). British volunteers for liberty: Spain, 1936-1939. Lawrence and Wishart.
Lua i Stíl Chicago (17ú heag.)Alexander, Bill. British Volunteers for Liberty: Spain, 1936-1939. London: Lawrence and Wishart, 1982.
Lua MLA (8ú heag.)Alexander, Bill. British Volunteers for Liberty: Spain, 1936-1939. Lawrence and Wishart, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.