Crabbé, Ann The handbook of environmental policy evaluation / Ann Crabbé and Pieter Leroy - London ; Sterling, VA : Earthscan, 2008 - xviii, 202 p. : ill. ; 25 cm. Includes bibliographical references and index ISBN: 9781844076185 (hardback) 1844076180 (hardback) Subjects--Topical Terms: Environmental policy--Evaluation