Food security and soil quality / edited by Rattan Lal and B.A. Stewart. Lal, Rattan. ed. Stewart, B. A. (Bobby Alton), ed. Food security. Soils Quality. 338.19 FOO Includes bibliographical references and index. Boca Raton, FL : CRC Press, c2010. c2010. 2010 Text xiii, 416 p., [1] leaf of plate : eng Advances in soil sciences