United States. Congress. House. Committee on Un-American Activities. (1949). Hearings regarding communist infiltration of minority groups.: Hearings before the Committee on Un-American Activities, House of Representatives, Eighty-first Congress, first session. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Un-American Activities. Hearings Regarding Communist Infiltration of Minority Groups.: Hearings Before the Committee on Un-American Activities, House of Representatives, Eighty-first Congress, First Session. Washington: U.S. Govt. Print. Off, 1949.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Un-American Activities. Hearings Regarding Communist Infiltration of Minority Groups.: Hearings Before the Committee on Un-American Activities, House of Representatives, Eighty-first Congress, First Session. U.S. Govt. Print. Off, 1949.