Roberts, Willard Lincoln <br/><br/>
Encyclopedia of minerals 
Edited by Willard Lincoln Roberts, George Robert Rapp, Jr. and Julius Weber 
 - New York  Van Nostrand Reinhold Co.  1974 
 - xxv, 693, 128 p. : ill. ; 28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0442268203 
<br/><br/><label>LCCN: </label>74-001155 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy--Dictionaries