Duval Guy <br/><br/>
Methodological approach for the retrospeetive diao 
Duval Guy 
 - Geneva  UN            1986 
 - 45p.  cm. 
 - United nations Research Institute for Social Development, Food systems monographs .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine
<br/><br/><label>Dewey Class. No.: </label>L:46.74.N8, M6/UN