Wershaw, R. L. (2004). Evaluation of conceptual models of natural organic matter (humus) from a consideration of the chemical and biochemical processes of humification. U.S. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationWershaw, R. L. Evaluation of Conceptual Models of Natural Organic Matter (humus) from a Consideration of the Chemical and Biochemical Processes of Humification. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2004.
MLA (9th ed.) CitationWershaw, R. L. Evaluation of Conceptual Models of Natural Organic Matter (humus) from a Consideration of the Chemical and Biochemical Processes of Humification. U.S. Dept. of the Interior, U.S. Geological Survey, 2004.
Warning: These citations may not always be 100% accurate.