Smithson, Peter. Fundamentals of the physical environment / by Peter Smithson, Ken Addison, and Ken Atkinson. - 4th ed. - Abingdon ; New York : Routledge, 2008. - p. cm. Includes bibliographical references and index. ISBN: 9780415395144 (hardcover) 9780415395168 (softcover) LCCN: 2007037708 Subjects--Topical Terms: Physical geography--Textbooks.