Keefer, D H <br/><br/>
Natural environmental radioactivity in south Florida sands and soils, February-June 1968.  [electronic resource] 

 -  Radiological health data and reports  Sep 1970 
 - 441-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0033-8400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Florida<br/>Potassium<br/>Radiation Monitoring<br/>Radium<br/>Soil<br/>Thorium<br/>Uranium