Simpson, Martín <br/><br/>
The fossils of the Yorkshire Lias. 

 - Hull :  A.Brown & Sons,  1942. 
 - 256 p. ;  16 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontología<br/>Fósil
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>56(116.2)