Ellis, S. Soils and environment / S. Ellis and A. Mellor. - London : Routledge, 1995. - xx, 364 p. : ill. (some col.), maps ; 25 cm. - Routledge physical environment series . Includes index. Includes bibliographical references. ISBN: 0415068886 (pbk.) Subjects--Topical Terms: Soils--Environmental aspects.