Sommer, Alfred <br/><br/>
Vitamin A deficiency and its consequences : A field guide to detection and control 

 - 3rd ed. 
 - Geneva:  World Health Organization,  1995 
 - vii, 69 p.:  ill. ;  23 cm. 
<br/><br/> Acc. No. 11915 
<br/><br/><label>ISBN: </label>9241544778 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vitamin A deficiency<br/>Xerophthalmia