TY  - BOOK
AU  - Dummeier,Edwin F.
AU  - Heflebower,Richard B.
AU  - Norman,Theodore
TI  - Economics with applications to agriculture
U1  - 134 
PY  - 1950///
CY  - New York
PB  - McGraw-Hill
KW  - Agricultural productivity
KW  - Fertilizers
KW  - Farm management
KW  - Agriculture
N1  - Suggested readings at end of each chapter; 1st pub. in 1934
ER  -