Roberts, Jane, 1954- Environmental policy [electronic resource] / Jane Roberts. - 2nd ed. - Milton Park, Abingdon, Oxon, [England] ; New York : Routledge, c2011. - xii, 258 p. : ill. - Routledge introductions to environment series . Includes bibliographical references and index. ISBN: 9780203842836 (ebook : PDF) Subjects--Topical Terms: Environmental policy.