TY  - BOOK
AU  - Heady,Eari O.
TI  - Externalities in the agriculture: benefits and costs
U1  - 338.1 HEA 
PY  - 1975///.
CY  - Ames : 
PB  - Lowa State University Press
KW  - Agriculure
KW  - Transformation
KW  - Basic Equity
N1  - Index
ER  -