TY  - BOOK
AU  - Huffman,Wallace E.
AU  - Evenson,Robert E.
TI  - Science for agriculture: a long-term perspective 
SN  - 081381359X
PY  - 1993///
CY  - Ames
PB  - Iowa State University Press
KW  - Agriculture
KW  - Research
KW  - United States
KW  - Economic aspects
N1  - Includes bibliographical references and index
ER  -