Title
Improving security and facilitating commerce at America's northern border and ports of entry [electronic resource] : hearing before the Subcommittee on Immigration, Refugees and Border Security of the Committee on the Judiciary, United States Senate, One Hundred Twelfth Congress, first session, May 17, 2011.
Other formats
Print version: United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Immigration, Refugees, and Border Security. Improving security and facilitating commerce at America's northern border and ports of entry