Galopin, R. <br/><br/>
Microscopic study of opaque minerals / 
by R. Galopin and N. F. M. Henry ; with historical note by J. Orcel. 
 - Cambridge :  W. Heffer and Sons Ltd.,  1972. 
 - x, 322, [7] p. :  ill. 
<br/><br/> English text, French preface and historical note. 
<br/><br/><label>ISBN: </label>0852700474 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy, Determinative.<br/>Optical mineralogy.