Raaen, Vernon F <br/><br/>
Carbon-14 / 
by Vernon F. Raaen, Gus A. Ropp and Helen P. Raaen 
 - New York  McGraw-Hill Book  1968 
 - 388 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies 
<br/><br/><label>LCCN: </label>67-020178 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Carbon--Isotopes