TY  - BOOK
AU  - Ball, V. Elton
AU  - Norton, George W.
TI  - Agricultural Productivity: Measurement and Sources of Growth
SN  - 0792376226
U1  - 338.16 
PY  - 2002///
CY  - Boston
PB  - Kluwer Academic Publishers
KW  - Economics
KW  - Social sciences
KW  - Agricultural productivity
ER  -