01250oam 2200373 a 450 991069653200332120110713095358.0(CKB)5470000002379533(OCoLC)123914719(EXLCZ)99547000000237953320070502d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierFacing tomorrow's challenges[electronic resource] U.S. Geological Survey science in the decade 2007-2017Reston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2007.x, 67 pages digital, PDF fileCircular ;1309Title from title screen (viewed on May 6, 2008).Includes bibliographical references.Facing tomorrow's challenges Earth sciencesResearchUnited StatesEnvironmental sciencesResearchUnited StatesEarth sciencesResearchEnvironmental sciencesResearchGISGISGPOBOOK9910696532003321Facing tomorrow's challenges3506287UNINA