TY  - BOOK
AU  - Gribb D B
TI  - Agricultural systems of the world :  An evolutionar   
T2  - Cambridge Geographical Studies
SN  - 0521202698
U1  - X9(J).1.N7, L4 
PY  - 1974///
CY  - London
PB  - C U P U K      
KW  - Industry
ER  -