World Health Organization <br/><br/>
Vitamin A Supplements : A Guide To Their Use In The Treatment And Prevention Of Vitamin A Deficiency And Xerophthalmia .-Edn 2 

 - Edn 2 
 -  W H O, Geneva 
 - pp 28;   24*16 
<br/><br/><label>Dewey Class. No.: </label>L:5:(E971)/N97/B22456