Micronutrient assesment at the country level :  an international study / 
Mikko Sillanpaa ; executed at the Institute of Crop and Soil Science, Agricultural Research Centre, Jokioinen, Finland and Soil Resource, Management and Conservation Service, Land and Water Development Division, FAO 
 - Rome :  FAO,  1990 
 - [viii], 208 p. :  ill. ;  30 cm. 
 - FAO soils bulletin ;  63 .
<br/><br/>Bibliography: p. 174-178 
<br/><br/><label>ISBN: </label>9251029555 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nutrition<br/>Trace elements in nutrition<br/>Micronutrient fertilizers
<br/><br/><label>Dewey Class. No.: </label>631