Instructions for collectors. No. 11 :  Fossils, minerals and rocks 

 - London :  British Museum,  1956. 
 - 16 p. ;  17 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy--Collecting of specimens.<br/>Paleontology--Collecting of specimens.
<br/><br/><label>Dewey Class. No.: </label>P 579.2 B755