Edwards, W. <br/><br/>
The concealed coalfield of Yorkshire and Nottinghamshire. 

 - 3rd ed. 
 - London :  Geol.Surv,  1951. 
 - 285 p. :  il. ;  25 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estratigrafía<br/>Cuenca minera
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>551.735(427)