International Workers Order, This is your Enemy, A Documentary Record of Nazi Atrocities Against Citizens and Soldiers of Our Soviet Ally, New York, ca. 1942, id1071, Box: 11, Folder: 22. Gilbert G. Benjamin, Jr. Subversive Activities Collection, URB-GGB. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/34905 Accessed June 16, 2026.