White, R. E. Principles and practice of soil science : the soil as a natural resource / Robert E. White. - 4th ed. - Malden, MA : Blackwell Pub., 2006. - xi, 363 pages : illustrations ; 25 cm. Includes bibliographical references and index. ISBN: 0632064552 (pbk. : alk. paper) : $70.00 Subjects--Topical Terms: Soil science. LC Class. No.: S591 / .W49 2006