Sale of children in interstate and foreign commerce hearings before the Subcommittee on Criminal Justice of the Committee on the Judiciary, House of Representatives, Ninety-fifth Congress, first session ... March 21 and April 25, 1977.

Gray market imports : hearing before the Subcommittee on International Trade of the Committee on Finance, United States Senate, Ninety-ninth Congress, second session, July 29, 1986, S. 2614.

Petroleum Investigation (Black Market in Gasoline) hearings before the United States House Committee on Interstate and Foreign Commerce, Seventy-Eighth Congress, second session, on Apr. 19-21, May 2-4, 15-19, 22, 1944.

Raising tobacco prices : new opportunities for the black market? : hearings before the Committee on the Judiciary, United States Senate, One Hundred Fifth Congress, second session, on examining the impact on the tobacco industry of proposed legislation relating to the increase in the price of tobacco products, focusing on whether new opportunities for the black market would be prevalent if tobacco prices rise, April 30, May 12, and May 13, 1998.

Animal underworld : inside America's black market for rare and exotic species

The black market ; a study of white collar crime

American kingpin : the epic hunt for the criminal mastermind behind the Silk Road

Reefer madness : sex, drugs, and cheap labor in the American black market

Reefer madness

The opioid crisis and the Dark Web how transnational criminals devastate U.S. communities : March 28, 2018, briefing of the Commission on Security and Cooperation in Europe.

Sale of children in interstate and foreign commerce hearings before the Subcommittee on Criminal Justice of the Committee on the Judiciary, House of Representatives, Ninety-fifth Congress, first session ... March 21 and April 25, 1977.

Gray market imports : hearing before the Subcommittee on International Trade of the Committee on Finance, United States Senate, Ninety-ninth Congress, second session, July 29, 1986, S. 2614.

Petroleum Investigation (Black Market in Gasoline) hearings before the United States House Committee on Interstate and Foreign Commerce, Seventy-Eighth Congress, second session, on Apr. 19-21, May 2-4, 15-19, 22, 1944.

Animal underworld : inside America's black market for rare and exotic species

The black market ; a study of white collar crime

American kingpin : the epic hunt for the criminal mastermind behind the Silk Road

Reefer madness : sex, drugs, and cheap labor in the American black market

Reefer madness

The opioid crisis and the Dark Web how transnational criminals devastate U.S. communities : March 28, 2018, briefing of the Commission on Security and Cooperation in Europe.