Biological indicators of soil health / edited by C. Pankhurst, B.M. Doube and V.V.S.R. Gupta. - Wallingford ; New York : CAB International, c1997. - xi, 451 p. : ill. ; 25 cm. Fakulti Agro Industri dan Sumber Asli. Includes bibliographical references and index. ISBN: 0851991580 9780851991580 Subjects--Topical Terms: Indicators (Biology)Soil biology.