Lend, E. (1938). The underground struggle in Germany. League for Industrial Democracy.
Chicago-referens (17:e uppl.)Lend, Evelyn. The Underground Struggle in Germany. New York City: League for Industrial Democracy, 1938.
MLA-referens (8:e uppl.)Lend, Evelyn. The Underground Struggle in Germany. League for Industrial Democracy, 1938.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.