Elton, Charles S. The ecology of invasions by animals and plants / by Charles S. Elton ; with a foreword by Daniel Simberloff. - Chicago : University of Chicago Press, 2000. - xiv, 181 p. : ill., maps ; 23 cm. ISBN: 0226206386 Subjects--Topical Terms: Biological Invasions. Dewey Class. No.: 577.18 ELT / 2323