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by O'Hanlon, Ray
by Boyer, David
by Boeringa, Alexander
by Gordon, Andrew Q.
by United States Government Accountability Office
by United States Congress; United States House of Representatives; Committee on Natural Resources
by Bowie, Emily
by Raber, Chester A., Ph.d.; Fricke, James E., Ph.d.
by Bosschere, Jean De; Flint, Frank Stewart; Sinclair, May (CON)
by Adriaan, Trude; Herman, Joanne