TY  - BOOK
AU  - Killingray,Margaret
ED  - Harrap 
TI  - Agricultural revolution
T2  - Harrap world history programme
SN  - 0245521445
U1  - 630.942 23
PY  - 1974///].
CY  - London: 
PB  - Harrap, 
KW  - Agriculture
KW  - History
KW  - England
ER  -