International health year book 1929 (fifth year) :  reports (with viral an public health statistics) on the public health progress of forty countries and colonies in 1928 /  
League of Nations. Health Organization. 
 - Geneva :  Health Organisation,  1930. 
 - 1504 σ. :  πίν. ;  24 εκ. 
 - Publications of the League of Nations. Health  ;  3,8 .
<br/><br/> Official No.: C. H. 838. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Δημόσια υγεία.<br/>Public health.
<br/><br/><label>Dewey Class. No.: </label>362.1