Ricklefs, Robert E. Ecology / Robert E. Ricklefs, Gar L. Miller. - 4th ed. - New york : W. H. Freeman and Company, 1999. - xii,896p.: ill.; 26cm. Includes bibliographical references and index. ISBN: 071672829X Subjects--Topical Terms: Ecology. LC Class. No.: QH541 / R53 1999