TY  - BOOK
AU  -  Howkes,J.G  .
TI  - Conservation and agriculture / 
SN  - 0715610325
U1  - 630 
PY  - 1978///
CY  - London : 
PB  - Geraid Duckworth , 
KW  - AGRICULTURE
N1  - Includes index
ER  -