Thorium, preparation and properties/ 
J. F. Smith ... et al. 
 - Ames:  The Iowa State University Press,  1975. 
 - viii, 385 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0813816351 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thorium.