McCullagh, F. (1930). Leon Trotsky.
Lua i Stíl Chicago (17ú heag.)McCullagh, Francis. Leon Trotsky. 1930.
Lua MLA (9ú heag.)McCullagh, Francis. Leon Trotsky. 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)
