Sommer, A. <br/><br/>
Field guide to the detection and control of xerophthalmia. 

 - 47p. 
<br/><br/><label>ISBN: </label>92-4-154127-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Xerophthalmia--Diagnosis, prevention and control<br/>Guidelines