Howard, Joanna <br/><br/>
Preventive medicine / 
Joanna Howard. 
 - London:   Heinemann Educational Books,   [1981].  
 - 32 p. :  ill. ;  19 cm. 
 - Heinemann science and technical readers .
<br/><br/><label>ISBN: </label>043529945X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Preventive medicine
<br/><br/><label>Dewey Class. No.: </label>614.44