Requirements of Vitamin A, iron, folate and Vitamin B12 :  report of a Joint FAO/WHO Expert Consultation. 

 - Rome :  Food and Agriculture Organization of the United Nations,  1988. 
 - FAO food and nutrition series ;  no. 23 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9251026254 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vitamin A in human nutrition.<br/>Iron in the body.<br/>Folic acid in human nutrition.<br/>Vitamin B12.