TY  - BOOK
AU  - Sillanpaa,Mikko
ED  - Food and Agriculture Organization of the United Nations.
ED  - The Institute of Crop and Soil Science.
TI  - Micronutrient assesment at the country level: an international study 
SN  - 9251029555
U1  - 631 
PY  - 1990///
CY  - Rome
PB  - FAO
KW  - Nutrition
KW  - Trace elements in nutrition
KW  - Micronutrient fertilizers
N1  - Bibliography: p. 174-178
ER  -