TY  - BOOK
AU  - Tompkins,Peter
AU  - Bird,Christopher
TI  - Secrets of the Soil/ (Acc: 1934)
SN  - 0060158174 :
U1  - 631.4 TOM 19
PY  - 1989///
CY  - New York
PB  - Harper & Row
KW  - Soils
KW  - Soil management
KW  - Organic farming
KW  - Agricultural ecology
ER  -