TY  - BOOK
AU  - Widdowson, R.W.
TI  - Towards holictic agriculture: a scientific approach 
SN  - 0080342116
U1  - 631.584 WID 
PY  - 1987///
CY  - Oxford
PB  - Pergamon Press
KW  - Organic farming
KW  - Agricultural ecology
KW  - Agriculture
N1  - Includes bibliographical references and index
ER  -