TY  - BOOK
ED  - Food and Agriculture Organization of the United Nations
TI  - Statistics of crop responses to fertilizers
PY  - 1966///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  - Fertilizers
KW  - Mathematical models
KW  - Economic aspects
KW  - Crop yields
N1  - p. 66
ER  -