1. Subversive involvement in disruption of 1968 Democratic Party National Convention, hearings before Committee on Un-American Activities, 90th Congress, 2d session. pt. 1. Oct. 1-4, 1969, erratum. Bookmark Corporate/Agency Authors: Internal Security Committee and House of Representatives Publisher: Internal Security Committee Date: [1970.] SuDoc number: Y 4.Un 1/2:D 39/pt.1/erratum