Hagenloh, P. "Socially harmful elements" and the Great Terror: Paul Hagenloh. Stalinism : new directions.(2000).
Lua i Stíl Chicago (17ú heag.)Hagenloh, Paul. ""Socially Harmful Elements" and the Great Terror: Paul Hagenloh." Stalinism : New Directions.(2000) .
Lua MLA (8ú heag.)Hagenloh, Paul. ""Socially Harmful Elements" and the Great Terror: Paul Hagenloh." Stalinism : New Directions.(2000), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.