Biological indicators of soil health / 
edited by C. Pankhurst, B.M. Doube and V.V.S.R. Gupta. 
 - London, UK :  CAB International,  1997. 
 - xi, 451 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0851991580 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil microbiology.<br/>Indicators (Biology)
<br/><br/><label>LC Class. No.: </label>QR111  / B56 1997