The natural radiation environment. 
Editors: John A.S. Adams [and] Wayne M. Lowder. 
 - [Chicago]  Published for William Marsh Rice University by the University of Chicago Press  c 1964 
 - xiv, 1069 p.  ill. 
 - Rice University Semicentennial publications. .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment.<br/>Radiation.<br/>Radioactivity--Safety measures.
<br/><br/><label>Dewey Class. No.: </label>539.77 NAT 1964