Borner, Rudolf. <br/><br/>
Minerals, rocks and gemstones /(by) Rudolf Borner, Tr. and ed. by M. Mykura.   
by Rudolf Borner, Tr. & ed. by M. Mykura.. 
 -  Oliver and Boyd  1962 
<br/><br/><label>Dewey Class. No.: </label>549.11  / N62 "R"