Kozel, Carlos. <br/><br/>
Mabisang tuklas para sa kalusugan / 
ni Carlos Kozel. 
 - Legazpi City :  Educational Health Reform Center,  c1971. 
 - xiii, 82 p. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health education.<br/>Medicine, Preventive.