TY  - BOOK
AU  - Heardy E O
AU  - Heady, E O
AU  - Whiting, L R
AU  - Heardy E O
AU  - Wliting L R
TI  - Externalities in Tranformation of Agriculture
U1  - 338.1/HEA 
CY  - Iowa
PB  - University press
KW  - Agriculture
KW  - Externalities
KW  - Tranformation
ER  -