Klehr, H. (1984). The heyday of American communism: The depression decade. Basic Books.
Lua i Stíl Chicago (17ú heag.)Klehr, Harvey. The Heyday of American Communism: The Depression Decade. New York: Basic Books, 1984.
Lua MLA (8ú heag.)Klehr, Harvey. The Heyday of American Communism: The Depression Decade. Basic Books, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.