01705oam 2200457 a 450 991069266610332120040909152815.0(CKB)5470000002354802(OCoLC)56388284ocm56388284(OCoLC)995470000002354802(EXLCZ)99547000000235480220040830d2004 ua 0engurmn||||||txtrdacontentcrdamediacrrdacarrierEvaluation of conceptual models of natural organic matter (humus) from a consideration of the chemical and biochemical processes of humification[electronic resource] /by Robert L. WershawReston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey ;Denver, CO :U.S. Geological Survey, Information Services [distributor],2004.Scientific investigations report ;2004-5121Title from title screen (viewed on Sept. 09, 2004).Includes bibliographical references.Evaluation of conceptual models of natural organic matter HumificationHumusBiodegradationSoil chemistryHumification.Humus.Biodegradation.Soil chemistry.Wershaw R. L1380672Geological Survey (U.S.)GISGISGPOBOOK9910692666103321Evaluation of conceptual models of natural organic matter (humus) from a consideration of the chemical and biochemical processes of humification3422614UNINA