%0 Generic %T Investigation of Communist Activities in the Chicago Area. hearings before the United States House Committee on Un-American Activities, Eighty-Third Congress, second session, on Apr. 29, 1954. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-1954-UAH-0009