TY  - BOOK
AU  - Hoffman, W.E. and Evenson, R.E
TI  - Science for Agriculture: A long - term perspective
SN  - 13:9780813806884
AV  - S541.H84 2006 
PY  - 2006///
CY  - USA
PB  - Blackwell
KW  - Agriculture- Research - United States
KW  - Agriculture- Research - Economic aspects- U.S
ER  -