Freeman, A. Myrick, 1936- The measurement of environmental and resource values : theory and methods / Myrick Freeman III, Joseph A. Herriges, Catherine L. Kling. - 3rd ed. - New York : RFF Press, 2014. Includes bibliographical references and index. ISBN: 9780415501576 Subjects--Topical Terms: Environmental policy--Cost effectiveness.Environmental policy--Evaluation.