TY  - BOOK
AU  - Evenson,Robert E.
AU  - Kislev,Yoav
TI  - Agricultural research and productivity
SN  - 0300018150 :
AV  - S540.A2 E9
PY  - 1975///
CY  - New Haven
PB  - Yale University Press
KW  - Agriculture
KW  - Research
KW  - Economic aspects
KW  - Mathematical models
N1  - Includes index
ER  -