Tworek, H. J. S. (2019). News from Germany: The competition to control world communications, 1900 - 1945 / Heidi J. S. Tworek. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Tworek, Heidi J. S. News from Germany: The Competition to Control World Communications, 1900 - 1945 / Heidi J. S. Tworek. Cambridge [u.a.]: Harvard University Press, 2019.
Lua MLA (8ú heag.)Tworek, Heidi J. S. News from Germany: The Competition to Control World Communications, 1900 - 1945 / Heidi J. S. Tworek. Harvard University Press, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.