Radek, K. (1935). Portraits and pamphlets. McBride.
Lua i Stíl Chicago (17ú heag.)Radek, Karl. Portraits and Pamphlets. N.Y.: McBride, 1935.
Lua MLA (8ú heag.)Radek, Karl. Portraits and Pamphlets. McBride, 1935.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.