Applied ore microscopy :  theory and technique / 
edited by Hugo Freund ; in co-operation with H. Ehrenberg ...[et al.] 
 - New York :  MacMillan,  1966 
 - xx, 607, xli p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy, Determinative<br/>Ores<br/>Microscope and microscopy