TY  - BOOK
AU  - Evenson, R.E
AU  - Gollin, D
TI  - Crop Variety Improvement and its Effect on Productivity: The Impact of International Agricultural Research
SN  - 0851995497
U1  - 631.53 
PY  - 2003///
CY  - UK
PB  - CABI, Publishing
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Plant breeding
KW  - Research
ER  -