Spellerberg, Ian F. Monitoring ecological change / Ian F. Spellerberg. - Cambridge [England] ; New York : Cambridge University Press, 1991. - xvi, 334 pages : illustrations ; 24 cm. Includes bibliographical references and index. ISBN: 0521366623 (hardback) 0521424070 (pbk.) LCCN: 91008346 Subjects--Topical Terms: Environmental monitoring. LC Class. No.: QH 541.15 / .M64S73 1991 Dewey Class. No.: 574.5/22