Kormondy, Edward John. Concepts of ecology / Edward J. Kormondy. - 3rd ed. - Englewood Cliffs : Prentice-Hall, 1984. - xviii, 298 p. ; 23 cm. Includes bibliographies and index. Open access. ISBN: 0131667025 LCCN: 8317656 Subjects--Topical Terms: Ecology.