Publication of the world health organisation 1968-1972 
/ World Health Organisation 
 - Geneva:   World Health Organisation,   1974 
 - 158p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Subjects--Index Terms: </label>Science 
<br/><br/><label>Universal Decimal Class. No.: </label>R 016:314.123:61  / L4