. . . "Rules"@en . . . "Review of the use of dispersants in response to the Deepwater Horizon oil spill : hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Eleventh Congress, second session, special hearing, July 15, 2010, Washington, DC"@en . . . . "Review of the use of dispersants in response to the Deepwater Horizon oil spill hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Eleventh Congress, second session, special hearing, July 15, 2010, Washington, DC"@en . . . . . . . . . . . . "2010" . . . .