Sillanpaa, Mikko. <br/><br/>
Micronutrient assessment at the country level :  an international study / 
Mikko Sillanpaa. 
 - Rome :  FAO,  c1990. 
 - vi, 208 p. :  ill. 
<br/><br/><label>ISBN: </label>9251029555 
<br/><br/><label>LCCN: </label>91013209     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility.<br/>Soil-Surveys.<br/>Trace elements.<br/>Micronutrient fertilizers