TY  - BOOK
AU  - Anderson, J.R, Hazell, B.R
AU  - J.R, Anderson,
AU  -  B.R, Hazell, 
TI  - Variability in grain yields: implications for agricultural research and policy in developing countries
SN  - 0801837936
CY  - London
PB  - IFPRI
KW  - Wheat trade
KW  - developing countries
KW  - seasonal variations
KW  - government policy
KW  - Wheat
KW  - varieties research
ER  -