TY - BOOK AU - Pankhurst,C. AU - Doube,B. AU - Gupta,V.V.S.R. TI - Biological indicators of soil health SN - 0851991580 PY - 1997/// CY - Wallingford, Oxon, UK PB - CAB International KW - Soil biology KW - Indicators (Biology) N1 - Includes index ER -