The impact of nitrogen deposition on natural and semi-natural ecosystems edited by Simon J. Langan - Dordrecht ; Boston, MA Kluwer Academic 1999 - ix, 251 p. : ill. ; 25 cm. Includes bibliographical references and index ISBN: 9780412810404 ISSN: 99029975 Subjects--Topical Terms: Atmospheric depositionNitrogen compounds - Environmental aspects Dewey Class. No.: 577.275711 LAN