Percival, Robert V Environmental law : statutory and case supplement with internet guide 2009-2010 Robert V. Percival and Christopher H. Schroeder - Austin, TX Wolters Kluwer 2010 - xv, 1197 p. ; 25 cm ISBN: 9780735579453 Subjects--Topical Terms: Environmental law Dewey Class. No.: 346.73 PER