Sommer, Alfred <br/><br/>
Vitamin A deficiency and its consequences :  A field guide to detection and control / 
A. Sommer. 
 - 3rd ed. 
 - Geneva :  World Health Organization,  1995. 
 - vii, 69 p., [8] p. of plates :  ill. ;  24 cm. 
<br/><br/> Rev. ed. of: Field guide to the detection and control of xerophthalmia. 2nd ed. 1982 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>92-4-1544778-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vitamin A deficiency in children<br/>Xerophthalmia<br/>Eye--Diseases