TY  - BOOK
AU  - R.W. Widdowson
TI  - Towards holistic agriculture : A scientific approach
SN  - 0-08-034211-6
U1  - 631.584 
PY  - 1987///
CY  - Oxford
PB  - Pergamon Press
N1  - R.W. Widdowson: Towards holistic agriculture : A scientific approach.  Oxford.  Pergamon Press, 1987. 0-08-034211-6--(631.584WID)
ER  -