100 problems in environmental health;  a collection of promising research problems. 

 - Washington,  Jones Composition Co.,  1961. 
 - xii, 185 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health.<br/>Public health<br/>Environmental Health
<br/><br/><label>Dewey Class. No.: </label>614 JON 1961 A051 Or.