Mitchell, Colin W. Terrain evaluation : an introductory handbook to the history, principles, and methods of practical terrain assessment / by Colin W. Mitchell. With a foreword by J. M. Houston - London : Longman, 1973 - xiv, 221 p. : ill. ; 22 cm. Includes bibliographical references and index ISBN: 058248426x (pbk) : ? 2.10 0582484251 Subjects--Topical Terms: LandformsGeologySoil Dewey Class. No.: 550