. . . . . . . . . "The national parks will they survive for future generations? : hearing before the Subcommittee on Criminal Justice, Drug Policy, and Human Resources of the Committee on Government Reform, House of Representatives, One Hundred Ninth Congress, first session, April 22, 2005"@en . . . "The national parks : will they survive for future generations? : hearing before the Subcommittee on Criminal Justice, Drug Policy, and Human Resources of the Committee on Government Reform, House of Representatives, One Hundred Ninth Congress, first session, April 22, 2005"@en . . . . . .