Parsons, Charles J. <br/><br/>
Gems and gemology :  a popular presentation of the science of gemology of rthe Amateur, collector and connoisseur / 
by Charles J. Parsons and Edward J. Soukup 
 - Mentone, Calif. :  Gembooks,  1961 
 - 160 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label> USD 3.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones
<br/><br/><label>Dewey Class. No.: </label>549