Understanding urban ecosystems : a new frontier for science and education / edited by Alan R. Berkowitz, Charles H. Nilon and Karen S. Hollweg. - xxix, 523 pages : illustrations ; 24 cm. ISBN: 0387954961 Subjects--Topical Terms: Urban ecology --Congresses.Ecosystem management --Congresses.Biotic communities --Study and teaching --Congresses. LC Class. No.: HT241 / .U52 1999