The species concept in palaeontology :  A symposium ed. for the association / 
By p. c. sylvester-bradley. 
 - 145 páginas 
 - Publication ;  2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Especies<br/>Paleontología
<br/><br/><label>LC Class. No.: </label>QH711  / S9