Essential environmental science : methods & techniques / edited by Simon Watts and Lyndsay Halliwell. - London ; New York : Routledge, 1996. - xxxii, 512 p. : ill., maps ; 25 cm. Includes bibliographical references and index. ISBN: 0415132460 (cloth) 0415132479 (pbk.) LCCN: 96015719 Subjects--Topical Terms: Environmental sciences--Experiments--Methodology.Environmental sciences--Experiments--Technique. LC Class. No.: GE70 / .E87 1996 Dewey Class. No.: 628/ESS