TY  - GEN
AU  - Widdowson, R.W. 
TI  - Towards holistic agriculture : a scientific approach 
SN  - 0080342116
U1  - 631.584 
PY  - 1987///
CY  - Oxford
PB  - Pergamon press
KW  - Specific techniques:apparatus, equipment, materials
KW  - Organic farming
KW  - Special methods of cultivation
KW  - Cultivation and harvesting
ER  -