DHEW health research principles 

 - Washington, D.C. :  Department of Health, Education and Welfare ,  1978 
 - v. ;  28 cm. 
<br/><br/> Library has vol.1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical statistics--United States<br/>Health surveys
<br/><br/><label>Dewey Class. No.: </label>614.4273