United States. Congress. Senate. Select Committee on Improper Activities in the Labor or Management Field: Investigation of improper activities in the labor or management field. Hearings before the Select Committee on Improper Activities in the Labor or Management Field. Washington : U.S. Govt. Print. Off., 1957 (archive.org [abgerufen am 23. Mai 2024]).
books.google.com
United States. Congress. Senate. Committee on Government Operations. Permanent Subcommittee. " Organized Crime and illicit traffic narcotics, Volume 1". 1965. (Seiten 284, 291)
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Nicholas Pileggi: The Decline and Fall of the Mafia. Life, 3. März 1972. S. 42-44