de Blij, H.J Geography: regions and concepts / H.J de Blij and Peter O. Muller -- Revised 6th ed. -- New York, N.Y. John Wiley & Sons, 1992 xvii, 638 p. 28 cm. Includes bibliographical references and index Subjects--Topical Terms: Geography Dewey Class. No.: GC 910 B618 1992