Fifteenth Census of the United States: 1930

United States. Bureau of the Census and Leon Edgar Truesdell

Tax Problems of Small Business

United States. Congress. Senate. Select Committee on Small Business

Communist Activities Among Aliens and National Groups

United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Immigration and Naturalization

Federal Drug Enforcement

United States. Congress. Senate. Committee on Government Operations. Permanent Subcommittee on Investigations

Communist Activities in the Cleveland, Ohio, Area

United States. Congress. House. Committee on Un-American Activities

Scientific Manpower and Education

United States. Congress. House. Committee on Science and Astronautics

Communist Activities Among Aliens and National Groups

United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Immigration and Naturalization